Top 7 Apollo.io alternatives in 2026

• Data accuracy. As of October 2026, G2’s review summary for Apollo says some users find contact data occasionally outdated and needing a check before outreach, and inaccurate data is among the most-mentioned cons.
• Credits. Apollo prices per seat, with credits pooled across the team. Unused credits expire at the end of each billing cycle, and a phone number costs 8 credits against 1 for an email.
• Volume without context. A large database makes it easy to build big lists, but it does not tell you which companies have a reason to buy now.

We read each vendor’s own product and pricing pages on October 6, 2026, and recorded what each states about its data, sending, free plan and entry price. We did not run a hands-on data test, and we left out review-site ratings, which change daily. Where we could not verify something, the table says so.

ZoomInfo is the largest enterprise alternative. At its GTM.AI launch on June 2, 2026, it described a context graph of 100 million companies, 500 million contacts and billions of buying signals, offered through an API and an MCP server to AI assistants, CRMs and sales engagement tools. ZoomInfo’s website blocked our checks, so we could not verify current plans or pricing. Best if you have the budget for one enterprise data platform.

Lusha states 515M+ verified contacts and 29M+ companies, with 26 buying signals refreshed weekly, and lists email sequence automation on every plan. Pricing (as of October 2026): Free with 40 credits a month; Starter $49.90/mo monthly or $37.45/mo annually; Professional $69.90 or $52.45. An email costs 1 credit and a phone number 5. Best for small teams that mostly need contact details.

Seamless.AI describes itself as a real-time search engine rather than a static database. It states 1.8B+ verified business emails and 414M+ phone numbers, with buyer intent, job changes and an AI dialer, and refunds the credit automatically when an email is invalid. As of October 2026, it is free for up to 50 credits, and paid plans are quoted by its sales team. Best for high-volume contact finding.

Clay is a data workbench: you combine 150+ data partners, its Claygent research agent and signals in tables you design, then sync to a CRM or its sequencer. Pricing (as of October 2026): Free; Launch $185/mo monthly or $167/mo annually; Growth $495/mo or $446/mo. Since March 2026, Actions and Data Credits are billed separately. Best if someone on the team will build and maintain workflows.

Amplemarket calls itself an AI sales copilot. Its Duo agent captures signals such as job changes and website visits, then builds multichannel sequences that, in the demo on Amplemarket’s homepage, the user approves before they run. It also has a parallel dialer, and its pricing page lists 200M verified mobile numbers. Pricing (as of October 2026): Startup $600/mo on an annual term with 2 users; Growth and Elite custom; free trial on all plans. Best for teams that want breadth with an approval step.

Unify offers outbound agents with 1.1B+ people and 65M+ companies from 40+ data sources, job-change and hiring signals, multichannel sequencing and a dialer. Signal-triggered automations are on its Business plan. Pricing (as of October 2026): Free for up to 3 seats with limited credits; Base $20/seat/mo and Pro $60/seat/mo, billed monthly; Business custom, billed annually. Best for teams comfortable with automated plays.

SalesOne is an account-first sales system, not a contact database. S1 agents (deep research agents) research accounts from dated, sourced buying signals, accept or reject each one against your ideal customer profile with a recorded reason, map the buying committee and score fit, timing and reach.

Contact details are found only for the people you pick, and a person approves every message before it is sent. The agents do the homework; your team builds the relationship.

• You want a large contact database to search and export. Apollo, Lusha or ZoomInfo fit better.
• You want a free plan or a self-serve start today. SalesOne plans are annual and by application, with onboarding.
• You want messages sent without a person approving them. SalesOne does not send autonomously.
• You need native two-way CRM sync. SalesOne logs every sent email to your CRM by BCC.
• You sell outside the US. SalesOne serves US businesses only today.

• You want data, sequences and a dialer in one tool at a published per-seat price.
• Your team is small and price-sensitive. Apollo has a free plan and a Basic plan from $49 per seat a month on annual billing.
• Your market is well covered in its data. Test a sample of your own accounts before deciding.

1. Name the problem: data quality, cost, missing timing, or too much volume.
2. Run a blind test: give two tools the same 50 target accounts and check the results by hand.
3. Count the real cost per useful contact or qualified account, not per credit.
4. Check how outreach is approved and how opt-outs and do-not-call rules are handled.