Apollo.io review: what the cold email and prospecting platform does, what credits cost and who it is for 

What is Apollo.io and what does it replace?

Apollo.io is a sales platform that bundles a B2B contact database, email and phone number lookup, multi-step outreach sequences, email warmup and deliverability tooling, a dialer, meeting scheduling, call recording and a lightweight deal pipeline behind one login. The vendor’s own framing is that it replaces five tools: a data provider, an outreach platform, a dialer, an enrichment service and a CRM. That is broadly true for a team of one to ten sellers. The database is the reason most people arrive, with 240 million-plus contacts and 30 million-plus companies claimed on the homepage, and the sequences are the reason they stay, because finding a prospect and dropping them into a five-email cadence happens in the same screen.

What makes an Apollo.io review harder to write than a review of a pure sending tool is the credit system. Almost every valuable action, revealing an email, unlocking a phone number, enriching a record, running an AI research prompt, dialing a US number, draws down a per-seat allowance that is granted with the plan and can be topped up for money. The plan price is the entry fee; the credits are the meter. Judge Apollo on the two together, and on how many of the 240 million contacts are the ones you actually sell to.

The numbers behind the platform

Apollo says over 600,000 companies use it, and the pricing page cites a 4.7 out of 5 rating from 9,690 reviews, which is the G2-style figure the vendor chooses to show. Trustpilot, which the vendor does not show, has Apollo at 3.1 out of 5 from 1,290 reviews on September 4, 2026, with 46 percent five-star and 37 percent one-star, and Trustpilot’s own summary notes the company has replied to 6 percent of negative reviews. Both numbers are real. G2 reviews are gathered from users inside the product; Trustpilot collects the people who went looking for somewhere to complain, and for Apollo they are complaining about specific things we get to below.

How much does Apollo cost, and what do the plans actually unlock?

For this Apollo.io review we priced every tier on September 4, 2026. Apollo has a free tier and three paid plans priced per seat, with a 24 percent discount for annual billing. Basic is $49 per seat per month billed annually or $65 month to month. Professional is $79 annually or $99 monthly. Organization is $119 per seat with a three-seat minimum on annual billing, or $149 on the monthly view, which the page marks as annual only. The free plan grants 900 credits a year, released monthly at 75. The paid plans grant credits up front for the year: 30,000 per seat on Basic, 48,000 on Professional and 72,000 on Organization. Monthly billing grants 2,500, 4,000 and 6,000 credits per seat per month respectively.

Prices in USD excluding tax, from the Apollo pricing page and its plan comparison table on September 4, 2026. Add-ons: Inbound at $119 per team per month and Advanced Dialer at $119 per team per month, both billed annually and marked as introductory pricing.

What Basic adds over Free

Basic is where Apollo becomes a working outreach tool: unlimited sequences instead of two, the deliverability suite and email warmup, advanced filters, CRM integrations, waterfall enrichment, six intent topics, domain and mailbox purchasing, CSV and API enrichment, and a record selection limit of 1,000 instead of 25. The record selection limit deserves a sentence, because the vendor’s own FAQ explains it with unusual candour: on Free you would need to click “select 25 and add” 400 times to save 10,000 leads. Basic still holds you to one mailbox per user and 250 emails a day.

What Professional adds over Basic

Professional is the cold email plan. It lifts the mailbox cap to unlimited Google and Microsoft accounts plus five SMTP mailboxes per user, removes the 250-a-day send limit, adds A/Z testing on sequences, raises call recording from 150 minutes to 4,000 with AI insights, adds analytics and pre-built reports, unlimited meeting events, 50 automated workflows per team instead of 5, and 48,000 credits. For a rep running four warmed mailboxes at 50 sends each, Basic’s single mailbox is a hard wall and Professional is the first plan that fits. Organization adds SSO, security configuration, twelve intent topics, 8,000 recording minutes, 500 workflows, a bring-your-own LLM key and a dedicated GTM engineer above a minimum contract.

The terms that matter

Cancellations take effect at the end of the current term, so an annual plan cancelled in month two still runs and bills to month twelve. Downgrades of plan or seats take effect immediately but are not refunded mid-term. Upgrades are immediate. The 14-day trial includes 100 credits and most features of the chosen plan, but you cannot connect a non-Gmail, non-Microsoft mailbox until you pay. Nothing on the standard plans may be used to resell data or power a product for your own customers. Check the fine print on the Apollo pricing page before you commit to annual, because the term is the term.

How do Apollo credits work, and what does a lead really cost?

Credits are the unit for anything that reveals or enriches data. The pricing page lists the rates: one credit to reveal a verified email, eight credits for a phone number, one to eight credits per enriched record (the FAQ says up to nine), one credit per AI research run, and two credits per minute on the US dialer, with international calling priced by region. Credits are granted per seat, up front for the year on annual plans, and you can buy more at any time from inside the app.

The arithmetic per seat

Our arithmetic from the published plan prices and credit grants: twelve months of the annual seat price divided by the yearly credits, then the credits divided by the per-action rate. Apollo does not publish a per-credit price for the included allowance.

Two things follow. First, at roughly two cents per email reveal, Apollo’s included data is cheap next to lemlist’s pay-as-you-go finder, where a verified email costs five credits at one cent each, five cents, and a phone number twenty credits, twenty cents. Second, the allowance is generous enough that most small teams never buy top-ups for emails and run out on phone numbers and enrichment instead. A rep who unlocks 200 mobile numbers a month burns 19,200 credits a year on phones alone, most of a Basic seat’s allowance.

Where the meter surprises people

The AI features draw on the same pool, and this is where the recent complaints cluster. A Trustpilot review from August 18, 2026 describes the AI assistant quoting one credit figure for an operation and then billing separately for “power-up” credits without warning, with support initially refusing to escalate. Another from August 23 says the paid plan “used so many tokens it never sent an email”. Whether those are user error or product design, the lesson is the same: watch the credit counter in the first week, and treat AI research and enrichment as paid actions, because they are.

How good is Apollo for cold email specifically?

The cold email half of this Apollo.io review is the shorter half: Apollo is a competent cold email tool wrapped around an excellent prospecting tool, and the order matters. Sequences support multi-step email, call and task cadences, A/Z testing on Professional and above, a unified inbox, a task execution centre and, from Basic upwards, the deliverability suite with warmup, domain health tracking and the ability to buy sending domains and mailboxes inside the product. Apollo does not send from its own servers; every email goes out through a connected Gmail, Microsoft or SMTP mailbox, which is why mailbox limits per plan are the real sending limits.

The sending limits, from the vendor’s own guidance

Apollo’s knowledge base article on sending limits, updated in August 2026, recommends starting each mailbox at 50 emails a day and scaling only after you hold a 5 percent reply rate and a clean domain reputation. Its recommended settings are 50 to 100 emails a day per mailbox, 10 to 20 an hour, and a 60 to 300 second delay between sends. Limits run on a rolling 24-hour window rather than resetting at midnight, warmup traffic does not count toward the counter, and the vendor’s stated way to scale is to add mailboxes, up to 15 per user depending on plan, rather than raise the cap on one. That is orthodox advice and it is the same advice Instantly and lemlist give; the difference is that those two let you connect unlimited mailboxes on their cheapest plan, and Apollo makes you pay for Professional to do it.

Free and Basic are not cold email plans

One mailbox and 250 sends a day is fine for a founder doing outreach personally. It is not a cold email operation. A team that wants three domains with three mailboxes each, warmed and rotated, needs Professional at $79 a seat, and at that point the question becomes whether you are paying for the database or for the sender. If the answer is the sender alone, the rivals section below will change your mind. If you also need the data, Professional is one of the few products where the two live in the same tab. The vendor’s own email deliverability guide is worth a read before you launch the first sequence, whichever plan you choose.

How big and how accurate is the database?

The database is the product. Apollo claims 240 million-plus contacts and 30 million-plus companies, with verified emails and phone numbers, searchable by basic filters on Free and by advanced filters, signals, buying intent topics, Google Maps business search, lookalikes and CRM custom fields on the paid plans. Intent topics run from one on Free to six on Basic and Professional and twelve on Organization. Waterfall enrichment on the paid plans checks multiple providers when Apollo’s own record is thin, and job change enrichment flags contacts who have moved.

What the reviews say about accuracy

The vendor publishes no accuracy percentage on its homepage, and the honest position is that accuracy varies by segment: strong on US tech and SaaS, thinner on small local businesses and on non-US mobile numbers. The Trustpilot one-star reviews from late August 2026 include one that calls the data “terrible and invalid” and complains that Apollo “charges credits for any action you take inside”, and two from people on the receiving end: one who says a company obtained their personal mobile through Apollo, and one who says Apollo sold their data and now they get spam. Those last two are complaints about the industry as much as the vendor, but they are a reminder that the phone numbers you unlock are people’s personal mobiles, and that the compliance burden of using them in the EU or UK is yours.

Reveal, enrich and export limits

What you can pull out of the database depends on the plan as much as on credits. The record selection limit governs how many contacts you can save or export in one action: 25 on Free, 1,000 on Basic, 2,500 on Professional and 10,000 on Organization. CSV import and export, CRM enrichment and API enrichment are paid features, with the free plan capped at 100 CRM enrichments a month. The API exists on every plan, but standard plans are for internal use only.

What does Apollo do beyond email, and what does it integrate with?

Beyond sequences, Apollo ships a deal management pipeline, meeting scheduling with one event on Free, three on Basic and unlimited on Professional, call recording with AI insights at 150, 4,000 and 8,000 minutes, a US dialer metered at two credits a minute, pre-meeting AI briefs, goals tracking, analytics and, on Professional and above, automated workflows, 50 per team, and a beta Projects feature. The AI assistant is marked introductory free on paid plans and limited to five chats on Free. AI writing is metered by words: 5,000 a month on Free, 250,000 on Basic, 800,000 on Professional and one million on Organization.

Integrations

The pricing FAQ lists Salesforce, HubSpot, Outreach, SalesLoft, Marketo, SendGrid and LinkedIn, plus every email provider, and the Chrome extension works inside Gmail, Salesforce and LinkedIn. CRM integrations and automated CRM enrichment start at Basic. For a HubSpot or Salesforce shop the two-way sync is the point: Apollo finds and sequences, the CRM stays the system of record. For a team with no CRM, Apollo’s deal management is enough to run a pipeline of a few dozen opportunities, and not enough to replace a real CRM once there are handoffs, quotes and renewals.

Inbound and the dialer add-ons

The Inbound add-on at $119 per team per month identifies up to 50,000 visiting companies a month and 10,000 US contacts, tracks 100 domains, enriches 5,000 form submissions a month with credits applying, and adds a form builder. The Advanced Dialer add-on at $119 per team per month adds international, parallel and power dialing with local presence. Both are priced per team rather than per seat, which makes them cheap for a ten-seat org and expensive for a solo founder.

How does Apollo compare with Instantly and lemlist?

The comparison that decides most purchases, and the one an Apollo.io review has to settle, is not Apollo against ZoomInfo, it is Apollo against the sending-first tools, and the answer depends on whether you already have your list.

Prices in USD on September 4, 2026 from each vendor’s pricing page.

If you own the list, Instantly at $47 sends 5,000 emails a month from as many warmed mailboxes as you like, and Hypergrowth at $97 sends 125,000, which no Apollo plan under Professional can match on volume and no Apollo plan can match on mailbox count for the money. lemlist Email at $69 gives 50,000 sends a month, unlimited senders, LinkedIn and multichannel on the next tier, and a pay-per-success finder for the emails you lack. Apollo wins the moment the list is the problem: at two cents per included email reveal, one Basic seat yields a year of prospecting data that would cost $1,500 through lemlist’s finder at five cents, and Apollo’s phone numbers, intent data and CRM sync have no equivalent on Instantly’s entry plans at all.

Where does Apollo fall short?

The weaknesses this Apollo.io review found are consistent across the reviews and the vendor’s own pages.

Support, and the lockout reviews

Support is where the Trustpilot score comes from. The five-star reviews praise the database and the sequences; the one-star reviews from the last two weeks of August and the first days of September 2026 are about being locked out. One from September 3 describes a permanent lockout with a “very substantial” value of credits left on the account and no way back in. One from August 28 describes a permanent ban, a rejected appeal and “no meaningful explanation”. Trustpilot’s summary line that the company has replied to 6 percent of negative reviews is the other half of the picture. Apollo does publish a detailed knowledge base, with the sending limits article alone running to a full page of guidance and FAQs, and an academy of guides, and paid plans get in-app support; the reviews suggest the gap is in account and billing disputes rather than how-to questions.

Billing rules to know before you sign

Annual plans bill for the term and cancel at the end of it. Downgrades are not refunded mid-term. Add-on credits bought mid-cycle expire at the end of the billing period. The trial converts to a paid plan or drops to Free. Existing customers may still be on a legacy credit system and not see the features on the pricing page, which the FAQ acknowledges. None of that is hidden, and all of it is the kind of thing that generates a one-star review from someone who did not read it.

The meter

Credits make the plan price a floor, not a total. Phone numbers at eight credits and enrichment at up to nine drain a Basic seat fast, and the AI assistant’s separate power-up credits are the subject of a specific August 2026 complaint. Budget the plan plus a top-up, and watch the counter for a month before you trust your estimate.

Sending is gated behind Professional

One mailbox and 250 sends a day on Free and Basic means real cold email starts at $79 a seat. Instantly and lemlist give unlimited mailboxes on their cheapest plans. If Apollo were only a sender it would lose that comparison outright.

A lockout takes the sequences with it

Apollo’s terms prohibit reselling data and powering external products on standard plans, and aggressive automation trips its abuse systems; whatever the cause of the lockouts above, losing the account means losing the running sequences. Export your lists regularly and keep the CRM as the system of record.

Term-locked cancellation

Cancellation at end of term with no mid-term refund on downgrades is standard SaaS, but combined with a 24 percent annual discount it pushes buyers into a year they may not want. Start monthly on Basic or Professional, and switch to annual once the credit usage and reply rates justify it.

Data privacy exposure

Two of the recent one-star reviews come from people whose personal mobiles surfaced through Apollo. That is the industry, but the compliance obligation for calling and emailing those people in the EU and UK is the customer’s, and Apollo’s tooling does not carry it for you.

Who should buy Apollo, and who should not?

Apollo fits a small B2B team whose bottleneck is finding the right people, not sending to them. Three scenarios show where the seat pays for itself.

Scenario one: a founder doing 30 outreach emails a day

One person, one Gmail mailbox, selling to US mid-market SaaS. Basic at $49 annual or $65 monthly gives unlimited sequences, warmup, advanced filters and 30,000 credits, and the one-mailbox limit does not bite at 30 sends a day. This is the best value in the line-up, and the free tier’s 75 credits a month is enough to test the data quality in your segment before paying. Start monthly, then move to an annual Apollo seat once the reply rate is real.

Scenario two: a two-rep team running nine mailboxes

Three domains, three mailboxes each, 50 sends a day per mailbox, HubSpot as the CRM. This is Professional at $79 per seat annual, $1,896 a year for two seats, with 96,000 credits, unlimited sends, A/Z testing and the HubSpot sync. Compare with Instantly Hypergrowth at $97 a month, $1,164 a year, for the sending alone plus a separate data source; Apollo costs more and does more. If those reps also unlock 200 mobiles a month each, plan on buying credits by month nine.

Scenario three: an agency sending for clients

You have the lists, you need volume across many domains, and data is the client’s problem. This is not an Apollo use case. Instantly at $47 or $97, or lemlist Email at $55 yearly with 50,000 sends and unlimited senders, does the job for a fraction of the cost, and Apollo’s terms on external use are a risk you do not need.

Who should not buy

Skip Apollo if you only need a sender, if your market is small local businesses outside the US where the database thins, if you cannot tolerate a metered bill, or if you need guaranteed human support for account disputes. Skip the annual plan on day one regardless of who you are.

Common buying mistakes

Buying Basic for a multi-mailbox operation and discovering the one-mailbox cap. Treating the credit grant as unlimited and unlocking phone numbers at eight credits each. Going annual for the 24 percent discount before testing data quality in your segment. Running the whole business inside Apollo’s pipeline with no export, then losing access. Ignoring the 50-a-day per mailbox guidance the vendor itself publishes.

Apollo.io pros and cons

Apollo.io

• Database, email and phone reveal, sequences, warmup, dialer, meetings and a pipeline in one seat, from $49 a month annual, with a free tier that is usable for testing.
• Included credits make prospecting data cheap: roughly two cents per email reveal on paid plans, against five cents through lemlist’s finder.
• Professional removes the send cap and mailbox cap, adds A/Z testing, 4,000 recording minutes and 50 workflows for $79 a seat.
• Two-way sync with Salesforce, HubSpot, Outreach, SalesLoft and Marketo, and a Chrome extension that works inside Gmail and LinkedIn.
• The vendor publishes conservative sending guidance, 50 a day per mailbox to start, and the tooling to follow it: warmup, domain health, mailbox purchasing.

• Credits meter nearly everything; phone numbers cost eight and enrichment up to nine, and AI power-ups draw on the same pool.
• Free and Basic allow one mailbox and 250 sends a day, so real cold email starts at Professional.
• Trustpilot 3.1 from 1,290 reviews with 37 percent one-star, dominated in late 2026 by account lockouts and surprise credit charges, and a 6 percent reply rate to negative reviews.
• Annual plans cancel only at term end, downgrades are not refunded mid-term, and the Organization tier needs three seats.
• Standard plans forbid external use of the data, and non-Gmail or Microsoft mailboxes need a paid plan even in trial.

Frequently asked questions

Is Apollo.io free?

There is a free plan with 900 credits a year released at 75 a month, two sequences per team, one mailbox, 250 sends a day, basic filters, one intent topic, five AI assistant chats and a 25-record selection limit. It is enough to test data quality in your market. Paid plans start at $49 per seat per month billed annually.

How much does Apollo.io cost per month?

Basic is $49 per seat per month billed annually or $65 monthly, Professional is $79 annually or $99 monthly, and Organization is $119 annually with a three-seat minimum, shown as $149 on the monthly view but annual only. Add-ons for Inbound and Advanced Dialer are $119 per team per month each. Prices exclude tax.

What are Apollo credits and how many do I get?

Credits pay for data actions: one to reveal an email, eight for a phone number, one to nine to enrich a record, one per AI research run and two per minute on the US dialer. Annual plans grant 30,000, 48,000 or 72,000 credits per seat up front; monthly plans grant 2,500, 4,000 or 6,000 a month. You can buy more at any time.

Is Apollo good for cold email?

Yes on Professional and above, where mailboxes are unlimited, daily sends are unlimited and A/Z testing is included. On Free and Basic you get one mailbox and 250 sends a day, which suits personal outreach rather than a cold email operation. Apollo recommends 50 emails a day per mailbox to start, and scaling by adding mailboxes rather than raising limits.

How many emails can I send per day with Apollo?

The plan limit is 250 a day per user on Free and Basic and unlimited on Professional and Organization, but the practical limit is per mailbox: Apollo recommends 50 to 100 a day and 10 to 20 an hour per mailbox with a one to five minute delay, on a rolling 24-hour window, and your mailbox provider enforces its own cap underneath.

Can I cancel Apollo anytime?

You can request cancellation from Plan Overview or by email, and it takes effect at the end of your current term. Downgrades apply immediately but are not refunded mid-term, and add-on downgrades apply at the end of the billing cycle. On an annual plan that means you pay through month twelve, so start monthly until you are sure.

Is Apollo.io data accurate?

Apollo claims verified emails and phone numbers across 240 million-plus contacts but publishes no accuracy percentage. Reviews describe strong coverage of US business contacts and complaints about invalid data and personal mobiles surfacing without consent. Test your own segment on the free plan before you pay, and treat unlocked mobiles as personal data with the compliance duties that follow.

Is this Apollo.io review saying Apollo beats Instantly?

Only when you need the data. Instantly Growth at $47 sends 5,000 emails a month from unlimited mailboxes and Hypergrowth at $97 sends 125,000, which beats Apollo on sending value below Professional. Apollo wins when the list is the problem, because a Basic seat’s 30,000 credits buy a year of prospecting data that a separate finder would charge far more for.

Which should you choose?

The conclusion of this Apollo.io review: choose Apollo if finding the right contacts is at least half of your problem, buy Basic for a solo seller and Professional for anyone running more than one mailbox, and start on monthly billing until a month of credit usage and reply rates tells you what the annual commitment really costs. It is the only product in its price band that puts a 240 million contact database, sequences, warmup, a dialer and CRM sync in one seat, and the included credits make its data cheaper than any pay-per-lookup finder.

Do not choose it as a pure sender, do not go annual on day one, do not unlock phone numbers without watching the meter, and do not let it be your only copy of the pipeline, because the lockout reviews are recent and specific. For the team that needs both the list and the outreach, start with Apollo’s free plan, test the data in your segment for a month, and then pay for the plan whose mailbox count matches the operation you actually run.