Instantly Review 2026: What $47 Actually Buys
Evidence re-fetched · instantly.ai
The deepest programmatic surface of any cold-email platform in this directory, wrapped around a headline price that buys roughly half of what most buyers think they are getting.
- Best for
- GTM engineers who will drive it from code — the API reaches further into this product than into any of its rivals, including buying mailboxes and turning warmup on and off.
- Not ideal for
- Anyone reading $47 as the bill, agencies who need client workspaces created programmatically, and buyers who weight a platform's public review score.
- Pricing
- Outreach from $47/mo. The 450M-contact database is a second subscription, so $94/mo is the real floor for the product as advertised. A 14-day trial exists but is stated only on the machine-readable pricing page.
- Our confidence
- Pricing is quoted from Instantly's own pages on the review date. The API section is not reported from documentation — we downloaded the OpenAPI specification and counted the paths, scopes and response schemas ourselves, so every claim in it is checkable against a file. The deliverability and support complaints are practitioner threads read at source, not competitor summaries of them.
What holds up
Unlimited connected mailboxes and unlimited warmup really are on every tier, including the $47 one. Your variable cost is Google Workspace or Microsoft 365, not Instantly.
Third-party reporting2 sources“Neither charges per mailbox. You pay the same monthly invoice whether you connect 5 mailboxes or 500. The mailbox provider ( [Google Workspace](https://workspace.google.com/pricing.html) at $6 to $18 per inbox or [Microsoft 365](https://www.microsoft.com/en-us/microsoft-365/business/compare-all-plans) at $6 to $22) is your real variable cost.”
— GigRadar (Vadym Ovcharenko) · Sells a competing productThe v2 API is the most complete in this category by a wide margin: 184 documented paths, and they cover the operations rivals leave in the browser — initiating Google and Microsoft OAuth, enabling and disabling warmup, running inbox-placement tests, even ordering mailboxes and domains.
From official docsSingle sourceAPI access is on every paid plan, including the $47 tier. Only webhooks are gated. That is the opposite of the usual arrangement, where the API is the upsell.
Vendor's own claim2 sources“API access is available on all Email Outreach plans.”
— Instantly help centre — API v2 · The vendor itselfAPI keys can be minted, listed and revoked through the API itself. Smartlead's cannot — there, the credential that unlocks everything exists only behind a button in a browser, so there is no bootstrap and no automated rotation.
From official docsSingle sourceAn official hosted MCP server runs at mcp.instantly.ai, and it is a properly built one: OAuth 2.1 with PKCE, dynamic client registration, and revocation and introspection endpoints — not just a static key in a config file.
From official docsSingle sourceRate limits are published, generous and honestly scoped: 100 requests a second and 6,000 a minute, stated as workspace-wide across v1, v2 and every key, so you cannot mistake per-key headroom for real headroom.
From official docsSingle source“The rate limit is shared between API v2 and API v1, and it applies to the entire Workspace, even if it’s using multiple API keys.”
— Instantly API docs — Rate limit · The vendor itself4.8 on G2 across 4,156 reviews — an order of magnitude more reviews than anything else in this category, and the single largest corpus we have checked.
Third-party reportingSingle source
What does not
Trustpilot has withdrawn Instantly's rating. The profile carries a guidelines-breach warning and a fake-review removal notice across 1,156 reviews, so the score a buyer would otherwise weigh does not exist.
Third-party reportingSingle source“This company’s rating is unavailable due to a breach of our guidelines.”
— Trustpilot · Vendor-listing directoryThe $47 plan is not the product in the advertising. Sending is one subscription; the 450M-contact database everyone signs up for is a second one. Both together start at $94.
Vendor's own claimSingle source“Credits plans are not limited by the number of emails sent, only by credits consumed. Credits power SuperSearch lookups (450M+ B2B contacts), Copilot, and the AI agents. Credits are a separate subscription from Outreach.”
— Instantly machine-readable pricing page · The vendor itselfInstantly publishes two different send limits for the same plan. The machine-readable pricing page says Hypergrowth includes 125,000 emails a month; the human pricing page's own comparison table and the vendor's blog both say 100,000.
Vendor's own claim2 sourcesIt also publishes two sizes for its warmup network, four times apart: 1,000,000+ accounts on the warmup product page, 4.2M+ on the page arguing it beats Smartlead.
Vendor's own claim2 sources“Instantly has over 1,000,000+ real email accounts in its deliverability pool and that number is constantly growing.”
— Instantly — Email Warmup · The vendor itselfWebhooks are gated to Hypergrowth. On the $47 and $37.60 plans the API is poll-only, which for reply handling means either latency or burning your rate limit on polling.
Vendor's own claimSingle sourceCredits expire. Two months after purchase on monthly billing, a year on annual. Buying a large credit block to get the rate and drawing it down slowly does not work.
From official docsSingle source“**Monthly plans:** Credits expire 2 months after purchase if unused - **Annual plans:** Credits expire 1 year after purchase if unused”
— Instantly help centre — Billing & usage · The vendor itselfSupport routes through a bot first, and practitioners report the human who follows does not inherit the context. G2's own tag counts show the same split: support is cited 491 times as a strength and 85 times as a weakness.
Third-party reporting2 sources“Whenever I have any issue first I have to talk to their bot, which keeps giving me obvious suggestion that I have already tried. Then I speak with their support agent. They usually miss the context from what I discuss with the bit and I have to again tell them everything.”
— r/coldemail — 'Rant | Instantly'SuperSearch bills about 1.5 credits per work email, and operators running volume say to skip it and source data elsewhere. 'Expensive' is also G2's single largest complaint tag, at 134.
Third-party reporting2 sources“instantly outreach plan is fine for sending, we run it across multiple client workspaces to spread the cost. supersearch is mega expensive though, skip it. scrape your own leads from linkedin or google maps and verify separately, way cheaper at volume.”
— r/coldemail — cold email best practices threadAgency client isolation cannot be automated. The API exposes the current workspace and its members, but there is no endpoint that creates a workspace — so the one operation an agency repeats per client is the one that stays in the browser.
From official docsSingle sourceBilling is read-only over the API. You can read your plan and subscription, but you cannot top up credits or change tier from code — and since exceeding your volume forces a tier upgrade rather than an overage charge, an automated pipeline cannot buy its way out of a stop.
From official docsSingle sourceThe free trial has no API. Instantly's own plan-comparison table marks API access as absent on the trial and present on all three paid tiers — so the one thing worth evaluating before you pay is the one thing you cannot evaluate before you pay.
Vendor's own claimSingle source“API | No | Yes | Yes | Yes”
— Instantly help centre — Email Outreach plans comparison · The vendor itself
What does $47 actually buy?
Sending, and nothing else. The lead database that carries the advertising is a separate subscription, and the real floor for the advertised product is $94.
Instantly sells two meters that look like one product. Outreach buys sending volume and uploaded contacts, with unlimited connected mailboxes and warmup on every tier. Instantly Credits buys everything that touches data or AI: SuperSearch lookups against the 450M-contact database, Copilot, the AI Sales Agent and the AI Reply Agent. Bundles pair them at a fixed ratio.
Outreach runs $47 (Growth, 5,000 emails and 1,000 contacts) to $358 (Light Speed, 500,000 emails and 100,000 contacts), with Hypergrowth at $97 in between. Annual billing takes roughly 20% off.
Vendor's own claimSingle sourceCredits run $9 (Nano, 150 credits) to $197+ (Hyper Credits, 10,000-200,000). The Growth Credits tier that carries the database and the waterfall enrichment is $47-77.
Vendor's own claimSingle sourceThe bundles are where the real floor shows: Starter is $94 for 5,000 emails and 1,500 credits — the same sending allowance as the $47 Outreach plan, plus the credits that make the database usable.
Vendor's own claimSingle sourceThere is no overage. Exceed the included volume and you upgrade the tier; the meter does not simply bill you more.
Vendor's own claimSingle source“Once a plan's included volume is exceeded, users upgrade tiers rather than pay an overage charge.”
— Instantly machine-readable pricing page · The vendor itselfConnecting your own mailboxes is free and unlimited, but Instantly also resells mailboxes, and those are charged per mailbox per month: $10 for a pre-warmed Google account, $5 for a done-for-you Google account, $4 for an Airmail account, $15 a year per domain.
From official docsSingle source“- Each domain: $15 per year - Each Pre-warmed Google email account: $10 per month - Each Done-For-You Google email account: $5 per month - Each Instantly Airmail email account: $4 per month”
— Instantly help centre — Billing & usage · The vendor itselfA 14-day trial with 250 contacts and 1,000 emails exists — but it is stated only on the pricing page Instantly writes for AI agents. The human pricing page and the homepage say only 'No credit card required' and name no trial length at all.
Vendor's own claimSingle source“A 14-day free trial (no card required) includes 250 uploaded contacts and 1,000 emails.”
— Instantly machine-readable pricing page · The vendor itself
Who this matters to: Anyone comparing Instantly's $47 against Smartlead's $39. The two numbers do not buy comparable things: Smartlead has no database to sell you, and Instantly's is not in the $47.
Is the warmup network worth anything?
Nobody knows, including us. Instantly publishes two different sizes for it, every critic sources the complaint to Reddit rather than a test, and no independent measurement of the thing exists anywhere we looked.
Instantly runs a shared pool of real mailboxes that exchange and engage with each other's mail to build sender reputation, and includes it free on every plan. Above Light Speed ($358/mo) you can add SISR — dedicated server and IP rotation — which is the vendor's own acknowledgement that the shared pool is not the same product as a private one.
The vendor says the boost is guaranteed, and is careful to guarantee the boost rather than inbox placement. Elsewhere it states plainly that placement depends on factors it does not control.
Vendor's own claimSingle source“Instantly’s deliverability system uses a private network of headless browsers to guarantee a safe & effective deliverability boost for your sending accounts.”
— Instantly — Email Warmup · The vendor itselfPractitioners report the opposite outcome on the shared pool — burned accounts rather than protected ones.
Third-party reportingSingle source“I got my email accounts burned when using Instantly’s warm up, it’s a scam. Switched to Emailchaser and don’t use warm up anymore and have had much better deliverability ever since.”
— r/Emailmarketing — 'Deliverability experts. Enlight us'Three commercially interested sources — a competitor, a done-for-you agency, and a comparison blog — independently name the same mechanism: the in-app warmup score and real inbox placement are different things.
Third-party reporting3 sources agree“**Warmup scores can be misleading.** Multiple Reddit threads report inboxes showing healthy scores inside Instantly's dashboard while campaigns are still landing in spam.”
— Cleverly · Sells a competing productThe most-cited figure against Instantly — 30-40% open-rate drops on the shared pool — is second-hand. GigRadar attributes it to r/coldemail consensus, not to its own measurement, and it sells a competing product.
Third-party reportingSingle sourceInbox-placement testing is at least a first-class part of the product rather than a dashboard number: tests, reports and analytics all have their own API endpoints, so you can measure placement yourself on a schedule.
From official docsSingle source
Who this matters to: Anyone choosing Instantly for deliverability specifically. It is the one claim on this page nobody — vendor, critic or us — has measured, and the endpoints above are the only route we can see to answering it for your own domains.
Can you drive it from code?API and agent surface
The most complete programmatic surface in this category, and the least consistently documented. You can buy a domain and a mailbox from a POST request; you cannot find out how many tools the vendor's own MCP server has.
What you still cannot do without a browser
Create a workspace. Every workspace endpoint addresses the one your key already belongs to; none of the 184 paths makes a new one. For an agency, that is the step repeated for every client onboarding, by hand, every time.
From official docsSingle sourceBuy anything. Billing is read-only: credits cannot be topped up and plans cannot be changed from code. Because exceeding your included volume forces a tier upgrade rather than an overage charge, a pipeline that runs out of room stops until a human buys more.
From official docsSingle sourceStart an email conversation. Reply and forward each require the id of a message that already exists, and the test endpoint deliberately writes nothing to Unibox — so no tracked first-contact email can be sent from code outside a campaign.
From official docsSingle source“This endpoint can be used to send an email only as a reply to an existing email.”
— Instantly API v2 OpenAPI specification · The vendor itself
Worth knowing before you build against it
Buying infrastructure is an API call. /dfy-email-account-orders checks domain availability, lists pre-warmed domains, orders new ones and adds mailboxes to them — Google and Airmail up to 5 mailboxes per domain at per-mailbox pricing, Microsoft 50-100 per domain at per-domain pricing. We have not found another vendor in this directory that lets a script buy its own sending infrastructure.
From official docsSingle source“- `dfy`: Buy new DFY accounts on new custom domains. - `pre_warmed_up`: Buy available pre-warmed domains returned by `/dfy-email-account-orders/domains/pre-warmed-up-list`. - `extra_accounts`: Add mailboxes to domains you already ordered.”
— Instantly API v2 OpenAPI specification · The vendor itselfConnecting a mailbox is scriptable end to end. /oauth/google/init and /oauth/microsoft/init mint an authorisation URL and a pollable session, so the one step that is a browser click everywhere else is an API call here — a human still approves at Google or Microsoft, but your code drives the flow.
From official docsSingle sourceWarmup is a first-class API object: enable and disable in bulk as background jobs you poll to completion, plus warmup analytics. Fleet-wide warmup policy can live in code rather than in a checklist.
From official docsSingle sourceYour credit balance is readable from the API — plan details returns available_credits alongside the plan's total. That matters more than it sounds: credits expire two months after purchase on monthly billing, and this is the endpoint that lets a job notice before they do.
From official docsSingle source“"available_credits": {"type": "number", "description": "Available Instantly Credits balance for the workspace"}”
— Instantly API v2 OpenAPI specification · The vendor itselfThe MCP setup Instantly recommends to non-technical users puts a live API key in the URL path. Its developer docs warn against exactly that — 'the key is part of the request URL, so it may be recorded in intermediary and server logs' — and recommend the header instead. Its help centre gives the URL form as the easiest option for Claude Desktop, and the only form for Cursor and n8n, under a heading that says to keep the key secure.
Vendor's own claim2 sources“Use this only if your MCP client cannot set custom headers. The key is part of the request URL, so it may be recorded in intermediary and server logs.”
— Instantly API docs — MCP authentication · The vendor itselfThe MCP server's own FAQ claims it can do 'everything you can do in the dashboard'. On the help centre's own tool inventory it cannot: SuperSearch, done-for-you ordering, inbox-placement testing, webhooks and workspace administration are all absent from the 31 tools it lists.
Vendor's own claimSingle sourceAPI v1 was deprecated on 19 January 2026 but still works, still shares the v2 rate budget, and still takes its key as a URL query parameter — so a half-migrated integration spends one budget twice and leaks a credential into logs while doing it.
From official docs2 sources“API v1 was deprecated on January 19, 2026. Use API v2 for all new integrations.”
— Instantly API docs — v1 to v2 migration · The vendor itself
Re-fetched 2026-08-27Pricing and what it actually costs
| Plan | Monthly | Annual (per mo) | Included |
|---|---|---|---|
| Outreach — Growth | $47 | $37.60 | 5,000 emails/mo · 1,000 uploaded contacts · Unlimited email accounts and warmup · API access · No webhooks |
| Outreach — Hypergrowth | $97 | $77.60 | 100,000 or 125,000 emails/mo — the vendor publishes both · 25,000 uploaded contacts · Webhooks · Multi-workspace · Premium live support |
| Outreach — Light Speed | $358 | $286.30 | 500,000 emails/mo · 100,000 uploaded contacts · SISR dedicated server and IP rotation |
| Outreach — Enterprise | Contact sales | — | Custom volume · Dedicated account manager · Private deliverability network |
| Credits — Free trial | $0 | — | 100 credits/mo |
| Credits — Nano | $9 | — | 150 credits/mo |
| Credits — Growth | $47–77 | — | 1,500–2,000 credits/mo · 450M+ B2B lead database · 13 filters including keywords and lookalikes · Waterfall work-email enrichment across 5+ providers |
| Credits — Supersonic | $97–147 | — | 5,000–7,500 credits/mo |
| Credits — Hyper Credits | $197+ | — | 10,000–200,000 credits/mo |
| Bundle — Starter | $94 | — | 5,000 emails/mo · 1,000 uploaded contacts · 1,500 credits/mo · AI Sales Agent |
| Bundle — Scale | $194 | — | 100,000 emails/mo · 25,000 uploaded contacts · 5,000 credits/mo · AI Reply Agent |
| Bundle — Agency | $555 | — | 500,000 emails/mo · 100,000 uploaded contacts · 10,000 credits/mo · SISR |
Two meters sold as three tracks. Outreach buys sending; Instantly Credits buys data and AI; bundles pair them at a fixed ratio. The plans below are the Outreach and Credits tracks separately, because that is where the arithmetic actually happens. Annual billing takes roughly 20% off. Instantly also publishes this table at instantly.ai/pricing.md, a page it addresses to AI agents — and that page is the more complete of the two.
Add-ons that change the real number
- Outreach capacity — $87 / mo“**Outreach add-on $87 / mo**: Extra 25,000 uploaded contacts and 125,000 emails monthly. Available with eligible Outreach subscriptions and bundles, including Hypergrowth, Light Speed, Scale, and Agency.”
- Instantly Credits (+50,000) — $425 / mo“**Instantly Credits add-on $425 / mo**: +50,000 credits. Available with eligible Instantly Credits subscriptions and bundles, including Hyper Credits, Scale, and Agency.”
- Pre-warmed Google mailbox — $10 per month“Each Pre-warmed Google email account: $10 per month”
- Done-For-You Google mailbox — $5 per month“Each Done-For-You Google email account: $5 per month”
- Instantly Airmail mailbox — $4 per month“Each Instantly Airmail email account: $4 per month”
- Domain bought through Instantly — $15 per year“Each domain: $15 per year”
14 days, no card, capped at 250 uploaded contacts and 1,000 emails. Stated only on instantly.ai/pricing.md, the pricing page Instantly writes for AI agents; the human pricing page and the homepage name no trial length at all.
Priced fairly against Smartlead once you compare like for like — Hypergrowth at $97 against Smartlead Pro at $94 is a genuine dead heat — and misleadingly against everyone if you compare the $47 headline. The number that decides your bill is credits, not emails: at roughly 1.5 credits per work email, ten thousand enriched contacts a month is fifteen thousand credits, which is the $197+ tier, not the $47 one. And unused credits expire in two months.
Reported, not collected by usWhat the review platforms say
G2 read 2026-08-27; Trustpilot re-read 2026-08-28, withdrawal still in place. The Trustpilot card is not a missing number — Trustpilot has taken the rating down: “This company’s rating is unavailable due to a breach of our guidelines”, alongside “We’ve removed a number of fake reviews for this company.” The 1,157 reviews are still there; the score is withdrawn. Instantly's own comparison pages cite Trustpilot reviews as evidence in its favour, which is worth knowing when you read them. G2's 4.8 across 4,156 is real and is the largest corpus in this category by an order of magnitude — G2 also sells placement to the vendors it lists, and its own auto-extracted tags put 'Expensive' at 134 and 'Poor Customer Support' at 85. We first saw the Trustpilot claim in an article by Salesforge, which sells against Instantly, and declined to publish it on a competitor's word; it is here because we then opened the page.
YouTube, US/en, 2026-08-27Video reviews worth your time
Instantly.ai Full Tutorial & Review - Watch This Before You Buy!
LeadSwift · 58,490 views · 16:40 · YouTube rank #1
The most-watched non-vendor review by a wide margin, so it is what most buyers actually see — and it is two years old, which means it predates the Outreach/Credits split entirely and its pricing chapter describes a product that no longer exists. LeadSwift sells a competing lead-generation tool and the final chapter is a pitch for it.
Instantly AI vs Smartlead 2026: Which Cold Email Tool Is Right for You?
George Vlasyev · 697 views · 9:51 · YouTube rank #1
Ranks first for 'Instantly vs Smartlead', three months old, and the only recent video that gets Hypergrowth right at $97 with 100,000 sends. It also repeats the vendor's 4.2M warmup figure without noting the vendor publishes 1,000,000+ elsewhere. Carries an Instantly referral link and discloses it.
Instantly AI Review: The Best Cold Email Outreach Tool in 2026?
George Vlasyev · 546 views · 10:33 · YouTube rank #3
The most recent full review in the ranked results, and the only one that puts a number on total cost — $150 to $300 a month for a working setup, against a $47 headline. Same referral link and disclosure as above. Our research packet recorded this video as carrying no affiliate link; that was wrong, and checking the description is what corrected it.
Smartlead vs Instantly vs Lemlist vs Apollo: BEST Cold Email Tool?
Georgey Tishin · 8,238 views · 15:01 · YouTube rank #5
The four-way comparison covers exactly the set a buyer is choosing between, and it is the one ranked video we found with no affiliate link in the description. It is also on our Smartlead review, so the two pages agree on what they are citing.
If Instantly is not it
Smartlead
Best if you need
Agency infrastructure: many client workspaces, white-label, dedicated IPs lower down the price list
The nearest thing to a like-for-like rival, and priced within $3 of Instantly at the mid tier. Smartlead goes deeper on multi-client operations and sells no lead data; Instantly goes deeper on the API and sells you the data as a second subscription. Smartlead's API is gated to Pro and its key can only be minted in a browser.
Lemlist
Best if you need
Multichannel sequences and outreach in languages other than English
LinkedIn and calling sit in the core product rather than behind integrations, and its personalisation is not English-only. You give up Instantly's unlimited-mailbox economics.
Reply.io
Best if you need
Email, LinkedIn, calls and SMS on one platform with an AI agent
The broadest channel coverage of this set. Instantly is email-only infrastructure with a database bolted on; Reply.io is a sales-engagement suite, and priced like one.
Saleshandy
Best if you need
The same unlimited-mailbox sending model at a lower entry price
The closest direct substitute at the budget end — sending, warmup and a lead database in one product. Thinner API and a smaller warmup pool, and it is one of the many vendors publishing 'Instantly alternative' articles, so read its own comparisons accordingly.
Apollo
Best if you need
The data to be the product, with sending included rather than the other way round
Inverts Instantly's structure: a contact database first, with sequencing attached. If you are buying Instantly for SuperSearch, this is the comparison to run — and note that most YouTube videos ranking Apollo against Instantly carry Apollo affiliate links.
Salesforge
Best if you need
Multi-language outbound with sending infrastructure sold separately
Listed here because it is the source that first put Instantly's Trustpilot status in front of us, and because it competes directly. It splits the stack — Mailforge for infrastructure, Salesforge for sequencing — where Instantly bundles. Everything it publishes about Instantly is written by a competitor.
Sourced from Google People Also AskQuestions buyers actually ask
- How much does Instantly cost?
- Vendor's own claim
Sending starts at $47/month (Growth: 5,000 emails, 1,000 contacts) and runs to $358 (Light Speed). But the lead database is a separate Instantly Credits subscription from $9/month, and the tier that includes the 450M-contact database and waterfall enrichment is $47-77. The realistic floor for the product as advertised is the $94 Starter bundle. All figures re-fetched 2026-08-27.
- Does Instantly really include unlimited mailboxes?
- Third-party reporting
Yes, and this is the claim that holds up best. Every Outreach tier includes unlimited connected sending accounts and unlimited warmup, from any provider, with no per-mailbox charge. Your variable cost is Google Workspace or Microsoft 365. Separately, Instantly also sells mailboxes — those are charged monthly per mailbox.
- Is there a free trial?
- Vendor's own claimVendor does not answer this
Yes — 14 days, no card, 250 uploaded contacts and 1,000 emails. It is stated on exactly one page: instantly.ai/pricing.md, the machine-readable pricing page Instantly publishes for AI agents. The human pricing page and the homepage say only 'No credit card required.'
- Why does Trustpilot show no rating for Instantly?
- Third-party reporting
Because Trustpilot withdrew it. The profile carries a guidelines-breach warning and states that Trustpilot has removed a number of fake reviews for the company. The 1,156 reviews remain visible; the score does not. Read at source on 2026-08-27.
- Does Instantly have an API and an MCP server?
- From official docs
Both, and they are unusually good. The v2 REST API documents 184 paths with scoped bearer tokens, 100 requests/second workspace-wide, and API access on every paid plan including the $47 one — only webhooks are gated, to Hypergrowth at $97. The free trial has no API at all. The official MCP server is hosted at mcp.instantly.ai over streamable HTTP with OAuth 2.1 and PKCE. There is also an official npm CLI, though Instantly's own documentation does not link to it.
- How many tools does the Instantly MCP server expose?
- From official docsVendor does not answer this
Unresolved, and the vendor is the reason. For the hosted server, its help centre says 31 across 5 categories while its developer documentation says every one of the 184 API endpoints is exposed. Its CLI bundles a second, local MCP server advertised as 156 tools in the README and 92 in the Gemini manifest inside the same package. Four numbers, none of which agree; we cannot reconcile them without a workspace to connect and count.
- Can I run Instantly entirely from code?
- From official docs
Closer than any rival here, but no. You can connect mailboxes over OAuth, drive warmup across a fleet, build and launch campaigns, run inbox-placement tests, read your credit balance, and even buy domains and pre-warmed mailboxes through the API. What you cannot do: create a workspace, change plan, top up credits, or start an email conversation outside a campaign.
- Is Instantly or Smartlead better?
- Our read
They cost the same and diverge on what they are for. At the mid tier Instantly Hypergrowth is $97 and Smartlead Pro is $94. Instantly has the deeper API, an official MCP server and a lead database it will sell you separately; Smartlead has the deeper agency and white-label tooling and gates its API behind Pro. Our Smartlead review has the other half of this comparison.
- Do unused credits roll over?
- From official docs
No — they expire. Two months after purchase on monthly billing, one year on annual. Buying a large block for the better rate and drawing it down slowly does not work.
Final verdict
Instantly is two good products and one misleading number. The sending platform is genuinely unlimited on mailboxes at every tier, and the API around it goes further than anything else in this category — you can connect mailboxes over OAuth, turn warmup on and off across a fleet, run inbox-placement tests on a schedule, and buy domains and pre-warmed mailboxes from a POST request. That last one we have not seen anywhere else. If you are a GTM engineer who would rather express sending infrastructure as code than as a checklist, this is the strongest option here, and the $47 tier does not lock you out of the API to get there.
The misleading number is $47. It buys sending and nothing else. The 450M-contact database in all the advertising is a separate subscription, and the tier that makes it useful is another $47 to $77 on top; the honest floor is the $94 bundle. Then the arithmetic that decides your real bill is credits, not emails — roughly 1.5 per work email, so ten thousand enriched contacts a month lands you on a $197+ plan, and whatever you do not spend expires in two months. Practitioners running volume are blunt about the conclusion: use Instantly to send, source your data somewhere cheaper.
Two things should give a careful buyer pause. Trustpilot has withdrawn Instantly's rating for a guidelines breach and says it removed fake reviews; the 1,156 reviews are still visible but the score is gone, and Instantly's own comparison pages cite Trustpilot as evidence in its favour. And the vendor cannot keep its own numbers straight — two send limits for Hypergrowth, two sizes for the warmup network four times apart, four different tool counts for its MCP server, and a trial that exists only on the pricing page it writes for AI agents. None of those is fatal. Together they mean you should verify anything on this page that matters to your decision against the app itself rather than against the marketing.
Where we cannot help: nobody has measured this warmup network. Every critic sources the 30-40% open-rate drop to Reddit rather than to a test, and Instantly guarantees a 'deliverability boost' rather than inbox placement. The inbox-placement test endpoints are the one honest route to an answer — run them on your own domains, with warmup on and off, before you commit a fleet.
25 sourcesEvery source on this page
- https://instantly.ai/pricingInstantly pricing pageThe vendor itselfchecked 2026-08-27
- https://instantly.ai/pricing.mdInstantly machine-readable pricing pageThe vendor itselfchecked 2026-08-27
Linked from the human pricing page as 'Are you an AI agent? See pricing'. It is the more complete of the two — the only place the trial length appears — which is worth noticing on its own terms: this is a page written to shape what language models say about Instantly's prices.
- https://help.instantly.ai/en/articles/11867333-billing-usage-overviewInstantly help centre — Billing & usageThe vendor itselfchecked 2026-08-27
- https://instantly.ai/email-warmupInstantly — Email WarmupThe vendor itselfchecked 2026-08-27
- https://instantly.ai/blog/comparing-instantly-vs-smartlead/Instantly blog — Instantly vs SmartleadThe vendor itselfchecked 2026-08-27
The vendor comparing itself to a rival. Cited here only where it states something about Instantly that counts against it, or where its number contradicts another Instantly page.
- https://instantly.ai/blog/instantly-smartlead-user-feedback/Instantly blog — user feedbackThe vendor itselfchecked 2026-08-27
- https://developer.instantly.ai/getting-started/rate-limitInstantly API docs — Rate limitThe vendor itselfchecked 2026-08-27
- https://developer.instantly.ai/mcp/authenticationInstantly API docs — MCP authenticationThe vendor itselfchecked 2026-08-27
- https://help.instantly.ai/en/articles/12980002-instantly-mcp-model-context-protocolInstantly help centre — MCP serverThe vendor itselfchecked 2026-08-27
- https://www.npmjs.com/package/@instantlyai/cli@instantlyai/cli on npmThe vendor itselfchecked 2026-08-27
Published and maintained by instantly.ai, so vendor-authored — but absent from Instantly's own documentation index, and the GitLab repository it names returns 404.
- https://api.instantly.ai/openapi/api_v2.jsonInstantly API v2 OpenAPI specificationThe vendor itselfchecked 2026-08-27
A machine-readable contract rather than a marketing page. We downloaded it and counted the paths, scopes and endpoint descriptions ourselves, so every API claim on this page is checkable against a file rather than against prose.
- https://mcp.instantly.ai/.well-known/oauth-protected-resourceInstantly MCP — OAuth protected-resource metadataThe vendor itselfchecked 2026-08-27
- https://www.g2.com/products/instantly/reviewsG2Vendor-listing directorychecked 2026-08-27
G2 sells placement and lead generation to the vendors it lists. Its aggregate is a popularity signal, not an audit — but its auto-extracted tag counts are useful precisely because no one writes them.
- https://www.trustpilot.com/review/instantly.aiTrustpilotVendor-listing directorychecked 2026-08-28
Read at source. Trustpilot has withdrawn the rating for a guidelines breach and states it removed fake reviews for this company.
- https://gigradar.io/blog/smartlead-vs-instantlyGigRadar (Vadym Ovcharenko)Sells a competing productchecked 2026-08-27
Sells Upwork outreach automation and argues at the end that you should consider inbound instead. Its pricing table is checkable against both vendors' live pages, which is why it is here; its deliverability claim is attributed to Reddit consensus rather than to its own test.
- https://www.cleverly.co/blog/instantly-ai-reviewCleverlySells a competing productchecked 2026-08-27
Sells done-for-you B2B lead generation and closes by pitching it. Its stated Instantly entry price does not match the vendor's published figure, so its numbers are not used here — only the mechanism it names.
- https://www.salesforge.ai/blog/instantly-ai-reviewSalesforgeSells a competing productchecked 2026-08-27
Sells a directly competing platform. It is the source that first raised Instantly's Trustpilot status; we declined to publish that on its word and opened the Trustpilot page instead, where it checked out. Its own figures are internally inconsistent — the same article says the rating is unavailable and quotes a 4.0.
- https://www.reddit.com/r/coldemail/comments/1k18xh1/r/coldemail — 'Rant | Instantly'No disclosed commercial tiechecked 2026-08-27
- https://www.reddit.com/r/coldemail/comments/1pj2402/does_instantly_super_search_leads_work/r/coldemail — 'Does instantly super search leads work'No disclosed commercial tiechecked 2026-08-27
- https://www.reddit.com/r/coldemail/comments/1rf2f4x/7_cold_email_best_practices_that_cost_me_domains/r/coldemail — cold email best practices threadNo disclosed commercial tiechecked 2026-08-27
- https://www.reddit.com/r/Emailmarketing/comments/1exqpm3/deliverability_experts_enlight_us/r/Emailmarketing — 'Deliverability experts. Enlight us'No disclosed commercial tiechecked 2026-08-27
- https://www.youtube.com/results?search_query=instantly+ai+reviewYouTube ranked results, US/enVendor-listing directorychecked 2026-08-27
Recorded as a source because the affiliate pattern in this SERP is itself a finding: the descriptions at ranks 2, 4 and 8 carry the same affiliate trial links for both Instantly and Smartlead.
- https://help.instantly.ai/en/articles/10432807-api-v2Instantly help centre — API v2The vendor itselfchecked 2026-08-27
- https://help.instantly.ai/en/articles/7920548-email-outreach-plans-comparisonInstantly help centre — Email Outreach plans comparisonThe vendor itselfchecked 2026-08-27
- https://developer.instantly.ai/guides/api-v1-migrationInstantly API docs — v1 to v2 migrationThe vendor itselfchecked 2026-08-27