Apollo.io vs SignalHire: Data Enrichment Tool Comparison
Compare Apollo.io and SignalHire side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
SignalHire vs Apollo comes down to how credits are sold. Apollo's pricing page grants 30,000 credits per seat per year on Basic at $49 a seat a month billed annually, 48,000 on Professional and 72,000 on Organization. SignalHire sells credit bundles from $39 a month billed annually that unlimited users share, so its bill follows volume.
Key takeaways
- Apollo's pricing page grants 30,000 credits per seat per year on Basic, 48,000 on Professional and 72,000 on Organization, upfront on annual billing at $49, $79 and $119 a seat a month.
- On monthly billing Apollo charges $65 for Basic and $99 for Professional with 2,500 and 4,000 credits a seat a month, and marks Organization Annual Only.
- SignalHire's cards start at $39 a month billed annually or $49 monthly, every card has an unlimited stop capped by fair usage at 2k credits a month, and users are unlimited.
- SignalHire's own sequences page now offers cold email sequences through Outlook or custom SMTP, and Apollo's pricing page lists a US dialer that SignalHire's cards do not.
Reviewed and updated October 1, 2026
SignalHire vs Apollo comes down to how each one hands out credits. Apollo's pricing page grants them per seat per year and hands them over upfront: 30,000 credits per seat per year on Basic, 48,000 on Professional and 72,000 on Organization, all billed annually. SignalHire sells a bundle of credits and lets any number of people spend it. Those two sentences decide most of this comparison, and they have very little to do with the feature lists further down the page.
SignalHire vs Apollo: Credits Per Seat Against Credits Per Bundle
Apollo's credits belong to a seat. Its pricing page lists 900 credits per seat per year on Free, granted monthly, then 30,000, 48,000 and 72,000 credits per seat per year on Basic, Professional and Organization, granted upfront on annual billing. An email costs 1 credit and a phone number 8. SignalHire's credits belong to the account, and any number of users share them.
Switch Apollo's page to monthly billing and the grant becomes monthly too: 2,500 credits per seat per month on Basic at $65, and 4,000 on Professional at $99. Organization shows $149 with 6,000 credits a month, but the card is marked Annual Only, so it cannot be bought month to month. Twelve monthly grants add up to the same 30,000 and 48,000 a year as the annual cards. What the monthly tab changes is the price per seat and the timing, because the annual grant arrives in one piece.
The Quick Answer
Apollo.io is a prospecting platform with a database inside it. SignalHire is a contact database that also sells email sequences, described on a separate page of its site, and its pricing cards list no dialer. If the plan is to source, sequence and dial from one seat, Apollo is the one of the two whose pricing page lists all three.
SignalHire wins where the sending already happens somewhere else and the job is putting verified contacts into it for a whole team without paying per seat.
Teams weighing this decision often want the neighbouring comparison too, and how a data enrichment platform fits beside a sending tool covers it.
Who Should Pick Which
Pick Apollo when the team is going to live in the tool. The credit grant is the reason: Basic hands over 30,000 credits per seat per year upfront rather than metering them monthly, so a rep who wants to build a 4,000-row list in week one can. Sequences, the dialer and CRM enrichment are on the same bill.
Pick SignalHire when the sending stack is settled and the list is the gap. Its paid cards carry unlimited users, which is the opposite of per-seat pricing, so three researchers and a VA can share one bundle without three subscriptions. The separate email and phone lines are the honest part of its pricing: a team that needs no phone numbers does not pay for the phone credits.
Anyone drawn to that should note SignalHire sells emails and phone numbers separately, each plan carrying its own credit pool.
The tie-breaker is what happens after the export. Apollo's credits are consumed inside a workflow that ends in a send. SignalHire's usually end in a CSV or a CRM record. A team that will always move the CSV somewhere else is paying Apollo for a sequencer it will not open.
For one or two people the answer is arithmetic: price one Apollo seat against one SignalHire card. From three people up, SignalHire's unlimited users share one bundle, and Apollo's bill grows by a seat for every person.
Timing is the last check. Apollo's annual grant arrives upfront, while SignalHire's unlimited packages allow 2k credits a month under its fair usage note, so a team that wants 4,000 rows in week one should not plan on an unlimited SignalHire package.
Pricing Comparison
Apollo.io Pricing
| Plan | Billed annually, per seat a month | Billed monthly, per seat a month | Credits per seat |
|---|---|---|---|
| Free | $0 | $0 | 900 per year, granted monthly |
| Basic | $49 | $65 | 30,000 per year upfront, or 2,500 a month |
| Professional | $79 | $99 | 48,000 per year upfront, or 4,000 a month |
| Organization | $119, minimum 3 seats | $149 shown, marked Annual Only | 72,000 per year upfront |
Billing basis: per seat per month, with the page advertising annual billing at a saving of 24 percent. The page also sells an Inbound add-on and an Advanced Dialer add-on at $119 per team per month billed annually each.
Source: Apollo.io Pricing
SignalHire Pricing
SignalHire's pricing page opens on yearly billing, and each paid card carries a slider with three stops: two credit bundles and an unlimited package. The table reads every stop in both billing states, as the page displayed them.
| Card | Yearly billing, per month billed annually | Monthly billing |
|---|---|---|
| Free | $0, 5 or 10 credits | $0, 5 or 10 credits |
| Emails | $39 with 7,200 credits, $57 with 12,000, $63 unlimited | $49 with 600 credits, $69 with 1,000, $79 unlimited |
| Phones | $39 with 3,600 credits, $57 with 5,400, $83 unlimited | $49 with 300 credits, $69 with 435, $99 unlimited |
| Emails & Phones | $39 with 3,600 credits, $57 with 5,400, $83 unlimited | $49 with 300 credits, $69 with 435, $99 unlimited |
Billing basis: every price is per month for the whole account, because the page says it does not charge per seat, and the toggle advertises savings of up to 74 percent. The free plan's 10 credits a month come with the extension installed, according to the page's footnote.
Source: SignalHire Pricing
Reading The Two Ladders Together
SignalHire. SignalHire charges per contact revealed: its FAQ says the Get Contacts button subtracts 1 contact if at least 1 email address or phone number is returned. An unlimited package sits at the top of every paid card's slider and is bounded by a fair usage note stating that spending is limited to 2k credits per month. That ceiling lives in an HTML tooltip attribute rather than in the plan card, so it is easy to miss, and it bounds all three unlimited packages.
Trials. Apollo's Basic and Professional cards offer a 14-day trial, which its FAQ says includes 75 credits, and the page stamps the whole ladder as introductory pricing that may change. SignalHire offers a free plan with no credit card, which its FAQ says retrieves 5 contact details before it asks for an upgrade.
What The Bill Actually Looks Like
The scenario below is a four-person team that needs 8,000 verified emails and 400 phone numbers in a year.
The arithmetic below is illustrative and the volumes are invented for the comparison. List prices are the ones published on each vendor's own pricing page.
On Apollo, an email costs 1 credit and a phone number costs 8. So 8,000 emails plus 400 phone numbers is 8,000 plus 3,200, which is 11,200 credits. Basic grants 30,000 credits per seat per year, so a single seat covers it with room to spare, and four seats at $49 per seat per month billed annually is $196 a month, or $2,352 a year. At this volume the seat count is the constraint.
On SignalHire the shape inverts. On yearly billing the Emails card's middle stop, $57 a month with 12,000 credits, covers the 8,000 emails, and the Phones card's first stop, $39 a month with 3,600 credits, covers the 400 phone numbers. That is $96 a month billed annually, or $1,152 a year, and users are unlimited, so the four people cost nothing extra. The Emails & Phones unlimited package at $83 a month billed annually also fits, at $996 a year, because at most 8,400 credits spread over twelve months is 700 a month, inside the 2k a month the fair usage note allows.
The lesson is that Apollo's bill moves with headcount and SignalHire's moves with volume, so the same team gets a different answer depending on whether it is adding people or adding rows. Cut the team to one person and Apollo's single Basic seat, at $49 a month billed annually, undercuts both SignalHire routes.
Apollo credits. 8,000 emails at 1 credit plus 400 phone numbers at 8 is 11,200 credits, inside one Basic seat's 30,000.
Apollo, four seats. Four seats at $49 is $196 a month, or $2,352 a year. The seat count sets the price.
SignalHire, two cards. Emails at $57 with 12,000 credits plus Phones at $39 with 3,600 is $96 a month, or $1,152 a year.
SignalHire, one unlimited card. Emails & Phones unlimited at $83 is $996 a year, while spending stays under 2k credits a month.
Illustrative arithmetic only. The volumes are invented for the comparison.
What Each One Gives Up
What Apollo gives up. Everything is per seat, so a team that wants three researchers sharing one allowance is buying three subscriptions and three sets of credits it may not spend. Organization carries a three-seat minimum and is marked Annual Only on the monthly tab, which puts a floor under the smallest sensible purchase at that tier. The page also stamps the whole ladder as introductory pricing that may change, so the rate a team models today is explicitly not a commitment.
What SignalHire gives up. Its pricing cards list no dialer, and its email sequences live on a separate page that does not say which plans include them, so it is usually one line item in a stack rather than the stack. Its unlimited packages mean 2k credits a month, a ceiling printed only in a tooltip. The combined Emails & Phones card prices exactly like the Phones card, so a team that needs both can buy one card, though at $57 the Emails card carries 12,000 credits against the combined card's 5,400.
Features Breakdown
Both vendors publish long feature lists, and most of each list describes the same job in different words. What matters is what sits on the plan a team would actually buy. Apollo's Basic card lists unlimited sequences, a deliverability suite with email warmup, waterfall enrichment, CRM integrations, a US dialer on which credits apply, and domain and mailbox purchasing. SignalHire's paid cards list unlimited users, access to 850M+ profiles and 30M+ companies, unlimited exports, CSV enrichment, team management, ATS/CRM integration and API access. Its email sequences sit on a separate page, which describes sending through Outlook / Microsoft 365 or a custom SMTP / IMAP server. These are list-membership claims, so check a specific need against the other vendor's pages before treating it as missing.
Apollo's Basic card lists
- Unlimited sequences
- A deliverability suite with email warmup
- Waterfall enrichment
- CRM integrations
- A US dialer, on which credits apply
- Domain and mailbox purchasing
SignalHire's paid cards list
- Unlimited users
- Access to 850M+ profiles and 30M+ companies
- Unlimited exports and CSV enrichment
- Team management
- ATS/CRM integration and API access
- Separate page Email sequences through Outlook / Microsoft 365 or custom SMTP / IMAP
Integration Ecosystem
Apollo.io Integrations
Apollo's pricing page FAQ says it integrates with Salesforce, HubSpot, Outreach, SalesLoft, Marketo, Sendgrid, LinkedIn and all email providers, and its plan comparison adds Pipedrive to the CRM list and Mailgun beside SendGrid.
SignalHire Integrations
SignalHire's integrations page names 25 tools under the heading Connect with 25+ Tools. Most are applicant tracking systems, such as Workable, Ashby, JobAdder, Loxo and Zoho Recruit, and the rest include Salesforce, Pipedrive, Zoho CRM, Salesloft, Reply, ActiveCampaign and ClickUp.
Shared Integrations
Salesforce, Pipedrive and Salesloft appear on both vendors' lists. HubSpot appears on Apollo's list and is not among the 25 tools on SignalHire's integrations page, so a HubSpot team should confirm the route with SignalHire before buying.
Switching Between Them
Moving from SignalHire to Apollo is mostly a workflow change rather than a data migration. The export is a CSV either way, and Apollo will enrich an uploaded list against its own database, so the previous exports keep their value. Budget for the seat conversation instead: every person who used to share the SignalHire bundle becomes a paid Apollo seat, and Organization carries a three-seat minimum.
Going the other way, the thing to plan for is the sequencer. Apollo holds the sequences, the mailboxes and the reply tracking. SignalHire's sequences page offers a sending tool of its own that connects Outlook / Microsoft 365 or a custom SMTP / IMAP server and tracks opens, clicks and replies, so leaving Apollo means either moving the sending there or standing up a separate sending tool. Export the contacted history before the seat lapses, because a suppression list is the one artefact that is expensive to rebuild.
Where Each One Sits In A Cold Outbound Stack
In a cold outbound stack these two sit at the same station. Apollo carries on into the send and the dial from the same seat. SignalHire most often ends at a verified row pushed to a CRM or an ATS, and its sequences page is where it reaches into the send.
House practice puts one message in a campaign and never sends a bump or a thread reply, which changes what a sourcing tool is worth. With a single touch, the quality of the row is doing all the work, so credits spent on verification are better spent than credits spent on volume. That argues for whichever tool gets a correct address on the first attempt rather than whichever hands over the biggest list.
Neither tool decides whether a meeting counts. That is settled in writing before launch against agreed criteria, and it is never contingent on budget, timing or job title.
How To Run The Evaluation
A fortnight of real use answers more than a feature comparison does, and the two free tiers are not the same size. Apollo's Free plan carries 900 credits per seat per year, granted monthly, and its paid trials include 75 credits, according to its FAQ. SignalHire's free plan retrieves 5 contact details before it asks for an upgrade. So the fair test is one month of SignalHire's smallest monthly card, $49 for 600 email credits, against an Apollo trial or Free seat, run on the same fifty target accounts. SignalHire's FAQ says a subscription can be stopped at any time, with the remaining credits usable until the end of the billing cycle.
The Decision In One Table
| Apollo.io | SignalHire | |
|---|---|---|
| Entry paid rung | $49 a seat a month, billed annually | $39 a month billed annually, or $49 monthly |
| What it charges for | seats | credit bundles |
| Free option | Yes | Yes |
| Where it sits | an all-in-one prospecting platform that bundles a contact database, sequences and a dialer | a contact-finding tool priced by credit bundle rather than by seat |
Final Thoughts
Apollo is the better buy for a team that wants one system to source, send and dial, and it prices that convenience per seat. SignalHire is the better buy for a team whose sending is already handled and that wants many people spending one credit bundle.
Run the same fifty target accounts through both before deciding. Match rate on the accounts that matter beats every feature comparison, including this one.
Related Reading
- Best Apollo.io Alternatives in 2026
- Best SignalHire 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 SignalHire: 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 many credits does Apollo give per seat per year?
- Apollo's pricing page lists 900 credits per seat per year on Free, granted monthly, then 30,000 on Basic, 48,000 on Professional and 72,000 on Organization, granted upfront on annual billing. On monthly billing the grant becomes 2,500 or 4,000 credits per seat per month, and Organization is Annual Only. An email costs 1 credit and a phone number 8.
- Is SignalHire or Apollo cheaper for my team?
- It depends on whether you are adding people or adding rows. Apollo charges $49 per seat a month billed annually, so four people cost four times one. SignalHire charges per account, from $39 a month billed annually, and any number of users share it. A large team with modest volume is usually cheaper on SignalHire, and a single user often cheaper on Apollo.
- Can SignalHire send cold emails now?
- Yes. SignalHire's email sequences page says it is built for cold email outreach, connecting Outlook / Microsoft 365 or a custom SMTP / IMAP server and tracking opens, clicks and replies. Its pricing cards do not say which plans include sequences, so ask before buying. Apollo includes sequences on every plan, with two on Free and unlimited from Basic up.
- What does SignalHire's unlimited plan actually allow?
- Every SignalHire card has an unlimited stop on its slider, at $63, $83 and $83 a month billed annually for Emails, Phones and Emails & Phones. A fair usage note says spending is limited to 2k credits per month, and it lives in a tooltip attribute rather than on the plan card, which makes it easy to miss. Plan the monthly volume against that 2k figure.
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
Connect on LinkedIn →Explore more.
Ready to scale your outreach?
We build GTM engines that book real meetings. See the receipts.
Related articles.
Apollo.io vs Proofy: Data Enrichment Tool Comparison
Compare Apollo.io and Proofy side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Apollo.io vs Bouncer: Data Enrichment Tool Comparison
Compare Apollo.io and Bouncer side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Apollo.io vs Bookyourdata: Data Enrichment Tool Comparison
Compare Apollo.io and Bookyourdata side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Evaboot vs SignalHire: Data Enrichment Tool Comparison
Compare Evaboot and SignalHire side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
Apollo.io vs Ocean.io: Data Enrichment Tool Comparison
Compare Apollo.io and Ocean.io side by side. See pricing, features, and integrations to choose the right data enrichment tool for your needs.
AroundDeal vs Leadspicker: Data Enrichment Tool vs Sales Engagement Platform Comparison
Compare AroundDeal (data enrichment tool) and Leadspicker (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.