Apollo

Apollo says it never charges more than 1 credit to access a contact's personal or business email.

Apollo credits reset at the start of each new billing cycle and do not roll over if unused.

Apollo includes email campaigns on every account at no extra cost; free plans can connect Gmail only, while paid plans can connect Microsoft Office or any other provider.

Apollo uses credits as the currency to perform activities across the platform, and credits reset at the start of each billing cycle without rolling over if unused.

Apollo's pricing page describes its Free plan as suited to exploring Apollo or very light usage, good for founders and early-stage teams.

Apollo refreshes data in real time whenever it captures a data signal, and separately runs monthly checks on its database to keep contact data accurate and up to date.

Apollo's pricing page lists API Access among the features of its Free plan.

Apollo's Basic plan is listed at $49 per seat per month, billed annually.

Apollo's Free plan is $0 with 900 credits per seat per year, granted monthly.

Apollo's Organization plan is listed at $119 per seat per month with a minimum of 3 seats, billed annually.

Apollo's Professional plan is listed at $79 per seat per month, billed annually.

Apollo says its sales engagement product bundles six connected tools: Sequences for multi-channel outreach, Dialer for calling, Tasks for daily execution, Book of Business for account-based follow-up, AI Messaging for personalization, and Meeting Scheduler for booking.

Apollo describes its Email Deliverability Suite as a built-in system covering domain and mailbox setup, authentication, warmup, verification, reputation protection, monitoring, and guided issue resolution.

Apollo lets teams buy dedicated sending domains and mailboxes directly in the platform, with SPF, DKIM, and DMARC configured automatically.

Apollo caps how many records a user can select from its database in one action; without a limit you can select and export up to 10,000 leads in one click, and higher-tier plans raise or remove that limit.

Apollo states its data network includes more than 240 million contacts and more than 30 million accounts.

Apollo says waterfall enrichment fills gaps in records by pulling from more than 20 trusted third-party sources in sequence until each field is complete.

Apollo says its database draws on a network of more than two million data contributors who share information about their business contacts in the course of using Apollo services.

Apollo states its database includes 240 million-plus contacts and 30 million-plus accounts with verified B2B data, firmographics, and signals.

Apollo's data product page displays a headline stat of 98% email accuracy.

Apollo describes using a proprietary, automated multi-step verification process to maintain a highly accurate database and keep records up to date.

Apollo says it runs a seven-step email verification process that checks emails within catch-all domains and verifies data in real time.

Apollo's own FAQ explains that third-party email verification tools flag some Apollo-verified emails as invalid because those tools rely on SMTP tickling, which cannot tell valid from invalid addresses on catch-all domains.

Apollo says no single data provider has everything, so its waterfall enrichment fills gaps in records by pulling from 20-plus trusted third-party sources in sequence until each field is complete.

Apollo puts every seat on an account on the same plan; a team cannot mix Professional and Basic seats.