Last updated May 2026
Apollo vs Seamless.ai
A side-by-side comparison of Apollo and Seamless.ai — pricing, features, integrations, and where each one wins.
Apollo
all in one engagement
All-in-one go-to-market platform combining a B2B database of 275M+ contacts, multi-step sequences, dialer, and CRM sync for outbound sales teams.
Visit Apollo →Seamless.ai
b2b database
Real-time AI search engine for B2B sales leads with phone numbers, emails, and CRM integrations.
Visit Seamless.ai →Pricing
Apollo
| Tier | Monthly | Per seat | Includes |
|---|---|---|---|
| Free | $0 | — | Unlimited email sending · 60 mobile credits/mo · 120 export credits/mo |
| Basic | — | $49 | 1,000 email credits/mo · Sequences · AI writing assist |
| Professional | — | $79 | Unlimited sequences · Dialer with local presence · Buying intent topics |
| Organization | — | $119 | Min 3 seats · Advanced security · Customer success manager |
Seamless.ai
| Tier | Monthly | Per seat | Includes |
|---|---|---|---|
| Free | $0 | — | 50 credits to start · Chrome extension access · Basic search functionality |
| Pro | — | — | Daily credit refresh · Email and phone lookup · Buyer intent data |
| Enterprise | — | — | Custom credit pools · API and data enrichment · Dedicated CSM |
Key features
Apollo
- B2B contact database with 275M+ contacts
- Multi-step email and LinkedIn sequences
- Built-in dialer with local presence
- Buying intent and job-change alerts
- CRM sync (Salesforce, HubSpot)
Seamless.ai
- Real-time AI search engine for B2B contact discovery
- Chrome extension prospects directly from LinkedIn and websites
- Pitch Intelligence and buyer-intent signals
- Autopilot list-building automation
- Native CRM sync with Salesforce and HubSpot
Where each one wins
Apollo
Strengths
- Generous free tier — unlimited email plus thousands of search credits
- Affordable compared to ZoomInfo at similar contact volume
- Database and outreach in one tool reduces stack complexity
Tradeoffs
- Free credits run out fast for active prospectors
- Data freshness varies versus enterprise-grade providers
- Email deliverability requires careful warmup discipline
Seamless.ai
Strengths
- Generous free tier compared to ZoomInfo or Lusha
- Real-time crawl can surface fresh contacts competitors miss
- Self-serve onboarding with credit-based trial
Tradeoffs
- Data accuracy inconsistent — verification often required
- Aggressive upsell and contract terms widely reported by users
- Credit consumption unpredictable on bulk searches