Apollo.io vs Seamless.AI: Data Enrichment Tool Comparison
An in-depth comparison of Apollo.io and Seamless.AI for real sales teams. Covers pricing, features, integrations, and which tool fits different team sizes and budgets.
Apollo vs Seamless.AI comes down to what each pricing page lets you model. Apollo lists Basic, Professional and Organization at $49, $79 and $119 per seat a month billed annually, with 30,000 to 72,000 credits a seat granted up front. Seamless.AI lists a free plan of 50 credits and prices Pro and Enterprise through sales.
Key takeaways
- Apollo publishes every paid rate and credit grant: $49, $79 and $119 per seat a month billed annually; monthly billing is $65 on Basic and $99 on Professional, while Organization is annual only.
- Apollo's yearly credit total is the same in both billing states; annual billing lowers the rate and grants the whole year's credits on day one.
- Seamless.AI's only published number is a free plan of 1 user and 50 credits; Pro and Enterprise go to sales, and one credit covers a phone and an email.
- Apollo bundles sequences and sending with its data, while Seamless.AI sells a search engine with intent, enrichment, autopilot and an AI assistant as add-ons.
Reviewed and updated September 21, 2026
Apollo.io grants its credits a year at a time and up front. Seamless.AI's pricing page shows no credit figure on either paid plan. That single difference in how the two pages are written tells a buyer more about Apollo vs Seamless.AI than the overlapping capability lists underneath, because one of these decisions can be made at a desk and the other one needs a call.
Apollo vs Seamless.AI: the quick answer
Apollo.io is the one with numbers. Its pricing page lists Basic at $49 per seat a month billed annually with 30,000 credits per seat granted up front for the year, Professional at $79 with 48,000, and Organization at $119 with 72,000 and a three seat minimum. On the Monthly tab Basic is $65 and Professional $99, with the same yearly credits granted a month at a time; Organization shows $149 there but is marked Annual Only, so it is billed annually. Seamless.AI publishes a free plan of 1 user and 50 credits, then routes Pro and Enterprise to sales. Pick Apollo.io when a per seat budget has to be modelled in advance, Seamless.AI when a real-time lookup surface is the thing being bought.
Understanding the Core Difference
Apollo.io is a database and a sending tool sold as one subscription.
Seamless.AI is a search engine plus an engagement layer sold together.
Apollo.io sells a database and a sending tool as one subscription, so its credit grant is annual and its unit of purchase is a seat. Seamless.AI sells a search engine and prices it through a conversation, with buyer intent data, data enrichment, autopilot and an AI assistant listed as add-ons rather than as tier contents. A team comparing them is really comparing a bundle against a component.
How Apollo and Seamless.AI differ on pricing and credit limits
Apollo.io Pricing
| Plan | Billed annually | Billed monthly | Seats |
|---|---|---|---|
| Free | Free, 900 credits per seat a year, granted monthly | Free | 1 or more |
| Basic | $49 per seat/mo, 30,000 credits a year up front | $65 per seat/mo, 2,500 credits a month | 1 or more |
| Professional | $79 per seat/mo, 48,000 credits a year up front | $99 per seat/mo, 4,000 credits a month | 1 or more |
| Organization | $119 per seat/mo, 72,000 credits a year up front | $149 per seat/mo, 6,000 credits a month, marked Annual Only | 3 minimum |
The page opens in the annual state and advertises a saving of 24 percent against monthly billing. The arithmetic bears that out on Basic, $49 against $65; Professional and Organization save about 20 percent. The yearly credit total is the same in both states, so what annual billing buys is the lower rate and the whole year's credits on day one. Organization carries a three seat minimum, so its real floor is three times the listed rate.
Source: Apollo.io Pricing
Seamless.AI Pricing
| Plan | Price | Included |
|---|---|---|
| Free | Free | 1 user, 50 credits |
| Pro | Talk to sales | Per user, unlimited exports, annual credit packages, one credit covers a phone and an email |
| Enterprise | Talk to sales | Unlimited users, custom packages |
The pricing page fetched for this comparison shows no rate on either paid tier. The page describes what each plan includes and routes both to a sales conversation, so the only published number on it is the 50 credit free allowance.
Source: Seamless.AI Pricing
How these figures were checked
Apollo's rates and credit grants were read from a dated snapshot of apollo.io/pricing taken for this comparison, fetched with a headless browser because the prices render in JavaScript rather than in the served HTML. Seamless.AI's pricing page was fetched for this comparison and carries no rate for either paid tier, which is what the statement above rests on rather than an inference from silence.
Two habits sit behind those sentences and both are worth borrowing when you check a vendor price yourself. A figure belongs to a page rather than to a company, because vendors contradict themselves across their own surfaces, so the page is part of the fact. And a pricing page that renders a monthly and an annual state into the same document will hand a careless reader a rate no visitor is shown, which is why the billing basis is named beside every number above rather than left implied.
What the two cost at a realistic volume
The arithmetic below is illustrative and uses list prices. The team size is invented for the comparison rather than measured.
Take three reps who each need contact data and a sending tool. On Apollo.io's Organization rung that is three seats at $119 per seat a month billed annually, $357 a month, which is also the tier's stated minimum, and it grants 72,000 credits per seat for the year up front. Drop to Basic and the same three seats are $49 each, $147 a month, with 30,000 credits per seat; Professional sits between at $237. The arithmetic is dull and that is the point: it can be done before anyone picks up a phone.
The same three reps on Seamless.AI cannot be costed at all from the published page. What can be costed is the gap the bundle closes. If Seamless.AI is chosen, a sending platform is still needed and is a separate line item, whereas Apollo.io's subscription already carries one.
So the comparison that matters is not per contact cost. It is whether the bundle's sending half is good enough to replace whatever else is in the stack. If it is, Apollo.io absorbs a line item. If it is not, the bundle is being paid for twice.
Reading the price ladders against each other
Two features of Apollo.io's ladder change what the headline rate means. The credits are granted per seat for the year up front rather than monthly, so a burst of list building early in the term is possible in a way a monthly allowance does not allow. And the page opens on annual billing, advertising a saving of 24 percent against monthly, so the rates above are the discounted ones rather than the sticker.
Seamless.AI's page carries one published number, the 50 credit free allowance, and it is best used as an evaluation rather than as a comparison point. The useful preparation before that sales call is a written list of which add-on capabilities the quote is expected to include, because the page separates them from the tiers and a quote will do the same.
Features Breakdown
Apollo.io pricing page
- Free, Basic, Professional and Organization, each with a rate and a credit grant
- Sequences, a deliverability suite with email warmup and waterfall enrichment inside the subscription
- Free and Basic: one mailbox per user and 250 emails a day
Seamless.AI pricing page
- A free plan of 1 user and 50 credits; Pro and Enterprise through sales
- Email addresses, cell phones and a real-time search engine
- Add-ons: AI assistant, data enrichment, autopilot, buyer intent data
The earlier version of this page carried two long feature lists copied from a template; they overstated what each tool lacked and are gone. Each column above is what that vendor's own pricing page lists today, and a capability named on one side may exist on the other.
Read them for shape rather than for exclusivity. Apollo.io's list runs toward sequences, deliverability and enrichment, which is a platform describing itself as a place work happens. Seamless.AI's runs toward search, lookups and pitch intelligence, which is a component describing what it resolves. That difference is real and it survives the template's overstatement.
Integration Ecosystem
Apollo.io's integrations directory lists Salesforce, HubSpot and Adobe Marketo among its connectors, and its pricing page puts CRM integrations on the paid rungs from Basic, with Gmail and Salesforce extensions from the free plan up. Seamless.AI's pricing page promises "one click integration to the top CRMs for sales and marketing including Salesforce, Hubspot, Salesloft, Zoho, Pipedrive, MS Dynamics, and more."
Both reach Salesforce and HubSpot, which covers the CRM surface most teams run. Neither page says how deep a sync goes, which fields write back or how duplicates are handled, so that is the question to put to both before the stack is standard enough for the integration list to stop mattering.
How to choose between Apollo and Seamless.AI for a growing outbound team
Pick Apollo.io when one subscription replacing two is the point. A small team that wants data and sending in the same tool, with a per seat cost it can model for a year, is exactly what the annual credit grant is designed for.
Pick Seamless.AI when the sending side is already settled and only the data layer is in question. A team that is committed to a dedicated cold email platform gains nothing from Apollo.io's sequencing half and should compare the data layers directly, which means running both free tiers over the same list.
One caution against the bundle, stated plainly. A sending tool that arrives as part of a data subscription is a sending tool nobody chose on its own merits, and deliverability is the half of outbound that punishes that. Evaluate Apollo.io's sending half as though it were being bought separately, because in effect it is.
Where Each One Sits in a Cold Outbound Stack
Apollo.io covers three of the four steps in this diagram, the list, the contact and the send, and Seamless.AI covers the first two, which is the whole trade. A team that lets Apollo.io do both gets fewer moving parts and less control over the sending half; a team that uses either tool for data only keeps that control and pays for two products.
Whichever shape is chosen, the verification step does not move. A vendor that resolved an address is not a neutral judge of whether it will bounce, and bounce rate benchmarks are worth reading before a first wave rather than after it. Then one message per campaign, no bumps and no thread replies, so each resolved contact gets a single attempt.
Switching Between Them
Leaving Apollo.io is harder than leaving most data tools, and the reason is the bundle. Sequences, tracked activity and pipeline records live inside the same subscription as the contact data, so a move that is only about data still costs the sending setup. Export the contact records first, then rebuild sequences in the new platform before cancelling anything.
Leaving Seamless.AI is simpler because it holds less. Exported contacts travel, and the add-on signals do not have an obvious equivalent on Apollo.io's ladder, so audit what those signals were actually driving before assuming the move is neutral.
In both directions the annual credit grant is a timing question. Apollo.io grants a year of credits up front, so a mid-term switch leaves unused credits behind; plan the move around the renewal rather than around the calendar.
Feature Comparison Summary
| Comparison | Apollo.io | Seamless.AI |
|---|---|---|
| Entry rung | Free | Free |
| First paid rung | $49/seat/mo billed annually ($65 monthly) | Quoted |
| What that paid rung is | Basic, billed annually | Pro is sold through sales |
| Where it sits in a stack | A database and a sending tool sold as one subscription | A search engine plus an engagement layer sold together |
Getting Started Checklist
- Decide whether the sending platform is genuinely in play, because that is the only thing that makes this a comparison of unlike products.
- Model Apollo.io per seat at the tier you would actually buy, remembering the three seat minimum on Organization.
- Run the same 100 target contacts through Apollo.io's free plan and Seamless.AI's 50 free credits, and count resolutions rather than rows.
- Ask Seamless.AI in writing which add-on capabilities a quote covers.
- Evaluate Apollo.io's sending half as though buying it alone, including how it handles sender rotation and warmup.
- Verify a sample of resolved addresses through a separate verifier before the first send.
Final Thoughts
Apollo.io is the safer purchase for a team that wants one bill and one login and can live with the sending tool that comes attached. Seamless.AI is the better fit for a team that has already chosen its sending platform and wants a search surface next to it.
The published numbers only reach half of this decision, and the half they reach is Apollo.io's. Use the free tiers for the other half.
Related Reading
- Best Apollo.io Alternatives in 2026
- Best Seamless.AI Alternatives in 2026
- Apollo.io vs ZoomInfo: Which B2B Data Platform Should You Choose?
- Apollo vs Clay: Choosing the Right Data Enrichment Tool for B2B Sales
- Clay vs Seamless.AI: Data Enrichment Tool Comparison
If you would rather have this run for you, RevenueFlow books qualified meetings on a pay-per-meeting basis and publishes client results.
Pricing and features are taken from the vendors' own pages. Verify current terms with the vendor before relying on them.
Frequently asked questions.
Frequently asked questions- How do Apollo and Seamless.AI differ on pricing structure and credit limits?
- Apollo prices per seat on a public ladder: Basic $49, Professional $79 and Organization $119 a month billed annually, with 30,000, 48,000 and 72,000 credits a seat granted up front for the year. Seamless.AI publishes only a free plan of 50 credits and sells Pro and Enterprise through sales, with annual credit packages and add-ons quoted separately.
- Apollo vs Seamless.AI: which is better for a growing outbound team?
- Choose Apollo when one subscription for data and sending, with a per seat cost you can model for a year, is the point. Choose Seamless.AI when a dedicated sending platform is already settled and only the data layer is in question. Either way, run both free tiers over the same list of known contacts before buying.
- Does Apollo's monthly billing include fewer credits?
- No. Apollo's monthly state grants 2,500 or 4,000 credits a seat each month on Basic and Professional, which adds up to the same 30,000 and 48,000 a year the annual state grants up front. What changes is the rate, $65 and $99 against $49 and $79, and when the credits arrive. Organization is marked Annual Only, at $119 a seat with 72,000 credits.
- What does a Seamless.AI credit buy?
- Seamless.AI's pricing page states that one credit equals a phone number and an email for a contact, and its FAQ describes a credit as used when the tool researches a contact to find emails, phone numbers and insights. The free plan includes 50 credits, which is enough to test resolution on a sample of known contacts before a sales call.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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