Apollo.io vs Seamless.AI
Which sales engagement tool is right for you? Compare features, pricing, and user reviews to make the best choice.
Apollo.io
Small and mid-size sales teams that want contact data and email sequencing in one affordable tool.
Seamless.AI
Sales teams that want a large contact database plus built-in emailing and dialing, and are fine negotiating a custom quote.
Side by side
| Apollo.io | Seamless.AI | |
|---|---|---|
| Pricing | From $49/seat/month billed annually ($65 month to month); free plan with 75 credits a month | Free plan with 50 credits; paid plans are quote only (no public prices) |
| G2 Rating | Not yet verified | Not yet verified |
| Best For | Small and mid-size sales teams that want contact data and email sequencing in one affordable tool. | Sales teams that want a large contact database plus built-in emailing and dialing, and are fine negotiating a custom quote. |
Pros and cons
Apollo.io
Pros
- Real free plan with credits, sequences and the Chrome extension
- Public per-seat pricing with monthly and annual options
- Data, sequencing, dialer and deliverability tools in one platform
- Large credit allowances on paid plans (2,500 a month on Basic monthly)
Cons
- Phone numbers cost 8 credits each
- Credits never roll over
- Basic plan limited to 1 mailbox per user and 250 emails a day
- No mixing of plan levels across one team
Seamless.AI
Pros
- Free plan to test the data before talking to sales
- Automatic credit refunds for invalid emails
- Free Chrome extension that works on LinkedIn and any website
- Data, emailing, dialing and AI list building in one platform
- States GDPR, CCPA and SOC 2 Type II compliance
Cons
- No public pricing for any paid plan
- Free plan is only 50 credits
- Vendor's database size claims differ between its own pages (1.6B+ vs 2.2B+)
- Credit costs per lookup are not published
Related comparisons
Apollo.io alternatives
Lusha is the easiest self-serve swap for small teams: a free plan, public prices and phone numbers at 5 credits instead of Apollo's 8. Pick Cognism for European calling, Hunter if you only need emails, Clay for custom enrichment, or lemlist if you mainly want better sequences. Larger teams that need more data and intent should look at ZoomInfo.
Marcus WilliamsUpdated October 2026Best Sales Prospecting Tools
Apollo.io is the best sales prospecting tool for most teams: a real free plan, public pricing from $49/seat/month billed annually, and contact data, sequences and a dialer in one tool. Pick ZoomInfo for enterprise data and intent, Cognism for Europe and verified mobiles, Lusha for a quick self-serve extension, or Clay for custom enrichment workflows.
Marcus WilliamsUpdated October 2026ZoomInfo alternatives
Apollo.io is the best ZoomInfo alternative for most teams: public prices from $49 per seat per month billed annually, a free plan, and data plus outreach in one tool. Pick Cognism for Europe and cold calling, Lusha or RocketReach for cheap self-serve lookups, or Clay for custom enrichment.
Marcus WilliamsUpdated October 2026