Apollo vs Seamless.AI
A side-by-side comparison of capabilities, autonomy, integrations, and pricing to help you choose.
Short answer: choose Apollo if you want b2b sales intelligence and engagement platform with ai gtm agents (Supervised agent, freemium); choose Seamless.AI if you want real-time b2b contact search engine with ai prospecting and outreach (Assistant, freemium).
| Apollo | Seamless.AI | |
|---|---|---|
| What it is | B2B sales intelligence and engagement platform with AI GTM agents | Real-time B2B contact search engine with AI prospecting and outreach |
| Type | product-with-agents | product-with-agents |
| Autonomy | Supervised agent | Assistant |
| Pricing | freemium · Free $0; Basic from $49/user/mo (annual) | freemium · Free tier (limited lifetime credits); Basic reportedly ~$147/mo; Pro and Enterprise quote-based |
| Best for | smb, mid-market, enterprise, developers | smb, mid-market, enterprise |
| Deployment | saas, api | saas, api |
| Modalities | text, email, voice, api | text, email, voice, browser, api |
| Models | gemini, model-agnostic | proprietary |
| Protocols | mcp, rest-api, function-calling | rest-api |
| Integrations | Salesforce, HubSpot, Pipedrive, Zoho, Gmail, Outlook | Salesforce, HubSpot, Salesloft, Outreach, Pipedrive, LinkedIn |
| Capabilities | 4 documented | 5 documented |
Apollo
- +Affordable all-in-one database plus sequencing with a free tier that lowers the barrier
- +Fast, intuitive filters and prospecting
- +Developer-friendly: REST API, MCP server, CLI, and published llms.txt
- -Data accuracy varies, with reported bounce rates and weaker international coverage
- -Credit-based consumption can inflate real costs
Seamless.AI
- +Fast, self-serve real-time contact lookup with a free tier and a Chrome extension over LinkedIn
- +Credit-back guarantee on invalid emails per its homepage
- +All-in-one: search, enrichment, intent signals, and built-in email/calling in one platform
- -Data accuracy and bounce rates are a recurring complaint in user reviews
- -Pro and Enterprise pricing is gated behind a demo, and credit consumption can inflate real cost
Which should you choose?
Apollo is b2b sales intelligence and engagement platform with ai gtm agents, best for smb, mid-market, enterprise, developers. Seamless.AI is real-time b2b contact search engine with ai prospecting and outreach, best for smb, mid-market, enterprise. The right choice depends on the autonomy level you want, your existing integrations, and your budget, all compared above.
This comparison is generated from the sourced Apollo and Seamless.AI profiles. Open either profile to review its evidence and last-reviewed date.