Instantly alternatives, sorted by why you are leaving
Unlimited mailboxes is the reason to buy it. The contact ceiling and the missing free tier are why people look. 4 replacements below, each one matched to a specific reason rather than ranked on a score nobody can audit.
Prices and limits for every option below are read off the vendor's own page. These are the Instantly competitors that answer a named problem, not a field of logos.
The 4 reasons people actually leave
If none of these is your situation, the honest answer is that you should probably stay, and the Instantly API review covers what you already have. The 26 providers these replacements are drawn from are in the Sending APIs listing.
1 · Uploaded contacts run out before emails do
Growth gives 5,000 emails a month against 1,000 uploaded contacts, and Scale gives 100,000 against 25,000. If your sequences are short, the contact ceiling binds long before the email one, and the upgrade you are forced into is priced on the meter you were not using.
2 · There is no free tier at all
Not a trial allowance, not a handful of credits. Both halves start at $47 a month, which makes Instantly one of the few providers here you cannot evaluate without paying first.
3 · The rate limit is per workspace, and the two numbers are one
100 requests a second and 6,000 a minute are the same rate expressed twice, so there is no burst allowance, and the budget is shared across v1, v2 and every API key you hold. A second integration divides what the first had rather than adding to it.
4 · You may be buying data twice
The Credits half at $47 buys a 450M contact database and waterfall enrichment, which is good value in isolation and redundant if you already pay a data provider. The bundles are exactly the two halves added together, so there is no discount pushing you toward it.
4 replacements, and what each one fixes
Ordered by how often they turn out to be the right answer, not by price.
| Provider | Entry price | Unit cost | Free tier | Fixes |
|---|---|---|---|---|
| Instantly | $47/mo | Not by the unit | No free tier. Outreach and Credits are sold separately from $47 each. | Baseline |
| Smartlead | $39/mo | Not by the unit | No free tier. Free trial, no card. API access starts at the Pro plan. | Best sending infrastructure |
| Apollo API | $49/seat/mo | $0.0196 per credit | Free plan with API access, 900 credits per seat per year granted monthly, so 75 a month | Best all-in-one GTM API |
| Salesloft | Quote only | Not by the unit | No free tier and no published price. | Best documented cost-based rate limit |
| Clay | $167/mo | $0.0452 per data credit | Free plan, 500 actions and 100 data credits per month | Best orchestration layer |
Read from each vendor's own pricing page between 8 and 19 October 2026.
The case for each one
Each one below is matched to a reason rather than scored, and each one names what you give up by taking it. A replacement with no downside is a replacement nobody has actually run.
Smartlead
The closest like-for-like on sending infrastructure, also API-first with unlimited mailboxes. The direct comparison if the sending half is what you are buying.
Both sell unlimited mailboxes with no per-mailbox charge, which is the thing that makes either of them worth buying. The difference is where the API sits: Smartlead's Base plan at $39 has no API and no webhooks at all, and both start at Pro, $94 a month with 90,000 sends.
Against Instantly's $47 halves that is more expensive for a programmatic build, and what the extra buys is webhooks on every event, which is what lets replies drive your own systems rather than sitting in somebody else's interface.
The ladder above it is published in full: Unlimited Smart at $174 for 150,000 sends and Unlimited Prime at $379 for 500,000, with client workspaces at $29 each.
What you give up
The contact database. Instantly's Credits half buys a 450M contact database with waterfall enrichment for $47, and Smartlead has no equivalent, so you would be adding an enrichment vendor to replace it.
When it is the wrong answer
Teams buying Instantly for the data rather than the sending. If the Credits half is the part you use, this replaces the wrong half and costs more.
Entry $39/mo. No free tier. Free trial, no card. API access starts at the Pro plan.. Most sending tools price by mailbox, which punishes exactly the setup that keeps you out of spam. Read the review · Instantly vs Smartlead
Apollo API
Sequencing plus a much larger data platform behind one $49 seat, with a free plan at 900 credits a year. The move if you were buying both Instantly halves.
Buying both Instantly halves is $94 a month. Apollo is $49 a seat for search, enrichment, sequencing and CRM write-back on one balance, so for a single operator it is roughly half the price for a wider product.
The sequence, contact and task endpoints cost nothing to call, so the parts of the motion that run most often do not touch your credit balance. There is also an MCP server and a free plan with full API access to test on.
The allowance is the number to read twice: 30,000 credits per seat per year, so Basic is 2,500 a month and scaling means buying seats rather than tiers.
What you give up
Sending infrastructure. Apollo sequences from a modest number of mailboxes; it is not built to run cold email across dozens of domains with warmup on every inbox. If deliverability at volume is the job, this is not the tool.
When it is the wrong answer
High-volume cold outbound across many sending domains. That is precisely what Instantly is for and Apollo does not attempt it.
Entry $49/seat/mo. Free plan with API access, 900 credits per seat per year granted monthly, so 75 a month. One of the few providers here that covers sourcing, enrichment and sending behind a single key, which is why it is usually the first API a GTM team wires up and the last one they rip out. Read the review · Instantly vs Apollo
Salesloft
The enterprise end of the same job, with a well documented cost-per-minute API. No published price, so expect a sales conversation.
Salesloft is what this category looks like when a sales organization rather than a growth team is buying. Forecasting, conversation intelligence and a process a manager owns, with the sequencer as one part of it.
The API is unusually well documented for a quote-only product: 600 cost a minute per integrated team, with a published cost per endpoint. The detail to plan around is that deep paging is charged at thirty times the normal rate, so a request past page 500 costs 30 of your 600.
The budget is per team rather than per integration, so every tool connected to that team draws on the same allowance.
What you give up
The published price, the free trial shape and the volume economics. There is no rate card at all, the pricing page is a form, and Salesloft can change the cost of an existing endpoint without notice.
When it is the wrong answer
Anyone who came to Instantly because it was cheap and transparent. This is the opposite purchase in both respects.
Entry Quote only. No free tier and no published price.. Salesloft publishes no price and documents its rate limit better than almost anyone here. Read the review
Clay
Not a dedicated sender. Named because the Credits half is really enrichment, and if that is the part you value, a router in front of 150 providers does it properly.
Instantly's Credits half at $47 is a contact database with waterfall enrichment attached. If that is the half you actually use, you are comparing it against enrichment providers rather than against senders, and Clay is the one that does the same thing across the widest set of providers.
Clay routes across more than 150 providers on one contract with logic a non-engineer can edit, and writes the result into whatever sender you keep.
The billing is the thing to model first: a found contact costs an action for Clay's work plus the data credits of whichever provider answered, $0.0452 a credit on annual Launch, and the HTTP API unlocks only on the $446 Growth plan.
What you give up
A dedicated sender. Clay has its own Sequencer for email, but mailboxes and warmup at volume are what Instantly is for, so most teams taking this keep a sender and pay for both.
When it is the wrong answer
Teams whose Instantly spend is the Outreach half. Mailboxes, warmup and deliverability at volume are what that half buys, and Clay is not the replacement for them.
Entry $167/mo. Free plan, 500 actions and 100 data credits per month. Clay is not really an enrichment API, it is the router in front of everybody else's. Read the review
What you would actually pay, on each one
4 of the 5 providers here publish a rate card. Salesloft does not, and the entry price below is all it will tell you without a call. The plan you want is the one whose included volume covers a normal month for you, not the cheapest one on the page.
Instantly
Instantly publishes 4 tiers, none of them free, and the paid ladder runs from $47 to $194.
Outreach only
- Unlimited email accounts and warmup
- 5,000 emails, 1,000 uploaded contacts
- No database access
Credits only
- 1,500 credits a month
- 450M contact database and waterfall enrichment
- No sending
Starter bundle
- Both halves, at the same combined price
- 5,000 emails, 1,000 contacts, 1,500 credits
- AI Sales Agent
Scale bundle
- 100,000 emails, 25,000 uploaded contacts
- 5,000 credits a month
- AI Reply Agent and premium live support
Smartlead
Smartlead publishes 4 tiers, none of them free, and the paid ladder runs from $39 to $379.
Base
- Unlimited email accounts and warmup
- 2,000 contacts, 6,000 sends a month
- No API, no webhooks, no CRM
Pro
- The first tier with API and webhooks
- 30,000 contacts, 90,000 sends
- Client workspaces at $29 each, SmartServers at $39
Unlimited Smart
- Unlimited contact storage, 150,000 sends
- 50,000 verified prospect emails included
- Premium warmup pool and CSM access
Unlimited Prime
- 500,000 sends, 170,000 verified emails
- 3 SmartServers and 3 client workspaces included
- Dedicated manager and a private Slack channel
Apollo API
Apollo API publishes 4 tiers, one of them free, and the paid ladder runs from $49 to $119.
Free
- Full API access, not a trial of it
- Granted monthly, so 75 credits a month in practice
- 2 sequences and basic filters
Basic
- US$588 a seat a year, credits granted upfront and pooled across the team
- 2,500 credits a month, at $0.0196 each
- Annual billing saves 24% against paying monthly
Professional
- 4,000 credits a month, at $0.0198 each
- AI lead scoring and multi-touch outreach
Organization
- 72,000 credits a seat a year, so 6,000 a month
- $0.0198 a credit, so the rate is flat across every paid tier
- The three-seat minimum makes US$357 a month the real floor
Salesloft
Salesloft publishes no price at all, so there is no rate card to put here. Everything is quoted, which means the number you get depends on what you ask for and on where in their quarter you ask it.
Get these in writing before you sign: the per-unit rate at your volume, the annual minimum, how many seats that price assumes, whether API access is included or an add-on. Without the first two you cannot compare this against anything else on this page.
Clay
Clay publishes 4 tiers, one of them free, and the paid ladder runs from $167 to Custom.
Free
- 100 data credits a month, 1,200 a year
- Unlimited seats and tables, up to 200 rows per table
- Multi-provider waterfalls and Claygent
- Bring your own API key
Launch
- 2,500 data credits a month, 30,000 a year, unused ones roll over up to 2x
- Phone number enrichment
- Job change and other signals, unlimited Audiences search
- Send through the Clay Sequencer or an integration
Growth
- 6,000 data credits a month, 72,000 a year, unused ones roll over up to 2x
- Integrate with any HTTP API. This is the tier that unlocks it
- Auto-sync and enrich CRM, warehouse sync
- Web intent signals, webhook-driven automation
Enterprise
- Custom action and data credit volume, and Clay API access for calling Clay from your own code
- Auto-delete, so one webhook takes unlimited submissions
Read the included volume before the headline price. A plan that costs twice as much and carries five times the credits is the cheaper plan, and on this page that is the usual case rather than the exception.
What each one costs at your volume
Instantly first, then every replacement. The model picks the cheapest published plan that covers your volume on each one, which is the comparison a row of entry prices cannot make.
Instantly
Priced on the volume you use, so the plan that covers a normal month is the one that decides the bill.
Smartlead
Priced on the volume you use, so the plan that covers a normal month is the one that decides the bill.
Apollo API
Priced on the volume you use, so the plan that covers a normal month is the one that decides the bill.
Salesloft
Publishes no price, so there is nothing here to model and the lines below say what to ask for.
Plans are read from each vendor's own pricing page and the model picks the cheapest one that covers you, so these are list prices before any discount you negotiate and before annual billing, which most of these vendors discount. Salesloft publishes no price, so nothing is modeled there and the panel says what to ask for instead.
What a year costs at three volumes
The same plan-fit arithmetic as the model above, run out to a year, because an annual number is what a budget actually asks for. Every column moves with volume, because all of these meter usage rather than seats.
| A year at | Instantly | Smartlead | Apollo API | Salesloft | Clay |
|---|---|---|---|---|---|
| 1,000 a month | $564 Outreach only | $1,128 Pro | $588 Basic | Quoted | $5,352 Growth |
| 10,000 a month | $2,328 Scale bundle | $1,128 Pro | $2,352 Basic | Quoted | $5,352 Growth |
| 50,000 a month | $2,328 Scale bundle | $1,128 Pro | $11,760 Basic | Quoted | Quoted |
4 of the 5 providers here publish enough to be put in this table. These are list prices on the published plan that covers each volume, so they are the number before you negotiate and before annual billing, which most of these vendors discount by between a fifth and a half.
Which replacement is yours
Answer what matters most and the lean appears below. Every option is read from the records on this page, and staying on Instantly is one of the possible answers.
Each answer leans one way. The recommendation appears here once you have picked at least two.
A tool like this can only weigh what is on the page. It does not know your segment, and the one test that does is the bake-off further down: real rows, cheapest entry on each side, spend divided by survivors.
Where an answer leans on a certification or an integration, it means that vendor publishes it on the pages this directory read, which is not the same as the other one lacking it. The sources are listed at the foot of the page.
Where the data comes from, and what you may do with it
The question that arrives late and expensively is not how good the data is, it is who is allowed to hold it. A migration is the moment to check it, because you are signing a new contract anyway.
| Provider | Fields returned | Coverage | Compliance | Redistribution |
|---|---|---|---|---|
| Instantly | Work email, Firmographics, Job postings, Intent and news | Global | GDPR DPA | Not stated |
| Smartlead | Work email, CRM records | Global | GDPR DPA SOC 2 Type II | Not stated |
| Apollo API | Work email, Mobile phone, Firmographics, Technographics, Job postings, Intent and news, LinkedIn profile, CRM records | Global | GDPR DPA SOC 2 Type II CCPA | Not stated |
| Salesloft | CRM records, Work email, Job changes | Global | GDPR DPA SOC 2 Type II | Not stated |
| Clay | Work email, Personal email, Mobile phone, Firmographics, Technographics, Job postings, Job changes, Intent and news, LinkedIn profile | Global | GDPR DPA SOC 2 Type II | Not stated |
None of these states a redistribution position on its pricing or docs pages. Internally that never matters. Put the rows in something your customers can see and it becomes the question your legal team asks first.
Two practical notes that apply to every provider on this page. A compliance badge describes the vendor, not your use of it, so a GDPR DPA does not give you a lawful basis for the outreach you send. And every one of these vendors runs its own opt-out, which means a person who asks you to delete their record has to be removed from your copy as well as from theirs.
Moving off Instantly
Written against Smartlead, the first pick above, because the steps are the same whichever one you take and the specifics are what make them useful. Swap the name and the order still holds.
Measure the thing you are about to lose
Run 500 rows you already have through Instantly and record the match rate, the fields that came back populated and the cost. Without that number a migration cannot be judged, because every provider looks cheaper per unit than the one you are paying for today.
Check the fields, not the field count
Smartlead does not return Firmographics, Job postings and Intent and news, which Instantly does. If anything downstream reads firmographics, that is a change to your pipeline and not just to your vendor.
Rewrite the auth and the limits, in that order
Instantly authenticates with bearer token, from a scoped API v2 key in workspace settings. Smartlead uses API key as a query parameter.
The limits are the part that bites later. Instantly rate: 100 req/s and 6,000/min, shared across v1, v2 and every key in the workspace.
Smartlead rate: 60 req/min and 1,000/hour per key, 120 and 3,000 on Pro. Three endpoints capped at 10 a minute on top. A loop tuned to the first will either crawl or get throttled on the second.
Run both for one billing cycle
Keep the old key live and route a slice of real traffic to the new one. A month is the shortest honest test, because credit expiry, rollover and the overage rate only show up at renewal and those are where the surprises live.
Cancel on the renewal date, not before
Credits on most of these plans do not survive a downgrade. Check what happens to the balance you have already paid for, and time the switch so you are not buying the same records twice.
The step people skip is the first one, and it is the only one that cannot be done after the fact. Once the old key is off you have nothing to compare the new match rate against, so a provider that is quietly worse on your segment looks like a provider that is fine.
What practitioners say about Smartlead
Transcribed as written and linked to the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for any figure on this page.
The sending tool is not what decides deliverability
To be clear, instantly Apollo and smartleads are all just front end management tools for campaign, lead list, and sending triggering through any API/SMTP servers (like Gmail, M365, sendgrid, SES, etc.) and they shouldn't have a direct effect on deliverability. Your email copy, leads, and sending patterns/volume are what matters the most
r/Emailmarketing · June 2024 · 5 points
The most useful correction on this page, and it applies to every sending provider in the directory rather than to Smartlead alone. These products schedule, rotate and report; the mail still leaves through Google, Microsoft or an SMTP relay, and the things that decide placement are the domain, the authentication, the list and the volume curve.
What that means for a comparison like this one is that the feature lists are not where the difference lives. Compare the mailbox economics, the webhook surface and what the API lets you automate, because those are the parts the vendor actually controls.
14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page.
What practitioners say about Apollo
The one part of this page that is not a vendor claim. The comment below makes its point in crude words, so we summarize it in our own words and link the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for a figure on this page.
The rate limit, not the credit price, is what people actually hit
In our words: A practitioner building on the API says the rate limits are what their team hit, that they got past them by routing requests across three Apollo accounts, and that Apollo charges per request even when a lookup returns nothing.
r/gtmengineering · May 2026 · summarized rather than quoted
Two halves worth separating. The limit is real and it is on this page: 200 requests a minute and 2,000 a day on Basic, with enrichment on a separate 1,000 a minute and no daily cap, which is why a bulk job and a per-row loop feel like different products.
The charge-on-no-output half needs care, because Apollo publishes 0 credits when nothing is found and that matches what we read. What a miss does spend is a request against the rate limit, and when the limit is the binding constraint that is the cost you feel. Pooling accounts to get round a published limit is a terms question before it is an engineering one.
11 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page.
What practitioners say about Clay
Transcribed as written and linked to the thread. A Reddit claim is a signal rather than a fact, so nothing here is the only source for any figure on this page.
Use it as a filter, not as a bulk provider
One thing I've seen with Clay is that it feels expensive when you use it like a bulk data provider, but much more reasonable when you use it as a filter first. I rarely enrich everything. I narrow the list with cheap signals and firmographics, then only run waterfall email/phone on leads that actually look worth it. That shift alone cut my credit usage a lot, and the outreach quality went up because fewer bad leads made it through. At that point you're paying for decisions, not just data.
r/gtmengineering · January 2026 · 16 points
This is the argument the pricing section makes, arrived at from the other direction. The lever that moves a Clay bill is not the rate, it is how many rows ever reach the expensive step. Narrowing on firmographics first costs almost nothing and keeps the paid enrichments for rows worth contacting.
It also explains why a team that thinks it wants to leave Clay often does not need to. The complaint is usually the spend, and the fix is usually an ordering change rather than a migration.
14 threads read on 13 October 2026, searched by vendor name. Scores and dates are the comment's own. Nothing here is the only source for a price or a limit on this site: every figure in the tables above comes from a vendor's own page.
Should you actually switch?
Decide which half you were actually buying. If it is sending, Instantly is hard to beat: unlimited email accounts with warmup at $47 a month is the cheapest way here to run cold outbound across many domains, and Smartlead is the only genuine like-for-like. If it is data, you are comparing a $47 database subscription against providers who publish a cost per record, and Apollo or a dedicated enrichment API will serve you better. The common mistake is buying the Starter bundle because it looks like a package, when the two halves cost exactly the same bought separately and most teams only need one.
Sending reputation does not transfer, so the migration is a warm-up schedule rather than an export. Confirm the API is on the plan you intend to buy, move one domain first and run it alongside the old sender for two weeks, and compare reply rate on the same list. Moving everything at once is how a working domain gets burned.
Head to head, and in a stack
Apollo API vs Instantly
CompareOne seat that does everything against two subscriptions that each do one thing well.
Compare them →Smartlead vs Instantly
CompareThe two senders that both give you unlimited mailboxes, gating the API in opposite ways.
Compare them →Instantly vs Reply.io
CompareUnlimited mailboxes with no stated ceiling against unlimited mailboxes with a published ratio.
Compare them →All alternatives
29Every provider in the directory that teams regularly try to replace, with the reasons and the replacements for each.
Browse the hub →Switching costs more than the rate card says. Usually.
Three times out of four the fix is a second provider behind the first and a credit ceiling in front of it, not a migration. We will tell you which case you are in before you sign anything.
Worked with 300+ companies. A senior operator runs your account.
Switching from Instantly, answered
What is the best Instantly alternative?
It depends on why you are leaving, which is how this page is organized rather than ranked. The replacement most teams land on is Smartlead, which this directory lists as the best sending infrastructure, at $39/mo. The case for it, and what you give up, is in the section above.
Is there a free alternative to Instantly?
Apollo (Free plan with API access, 900 credits per seat per year granted monthly, so 75 a month) and Clay (Free plan, 500 actions and 100 data credits per month).
What is the cheapest Instantly alternative?
On the entry plan, Smartlead: $39/mo, against Instantly at $47/mo. Entry price is not the same as cost per result, so check the unit figure on each review before deciding.
How were these alternatives chosen?
By the reason teams leave, not by a score. The page opens with the reasons teams leave and matches a replacement to each one.