Comparison · Independent · Updated June 2026
Apollo vs Seamless.ai
In short
Apollo edges it overall at 7.4/10 to Seamless.ai's 6.3/10. Apollo leads on pricing & transparency Apollo publishes its pricing; Seamless.ai is demo-gated.
Scorecard, side by side
| Our rubric | Apollo | Seamless.ai |
|---|---|---|
| Overall score | 7.4 | 6.3 |
| Data accuracy | 6.5 | 5.5 |
| Coverage | 7.5 | 7.0 |
| Ease of use | 9.1 | 8.9 |
| Pricing & transparency | 8.5 | 5.0 |
| Compliance | 6.0 | 4.5 |
Scores come from the same rubric applied to every provider. Higher value in each row is highlighted.
Third-party ratings
| Public rating | Apollo | Seamless.ai |
|---|---|---|
| G2 | 4.7/5 (9,665) | 4.4/5 (5,341) |
| Capterra | 4.5/5 (394) | 4.5/5 (547) |
Pricing & data, side by side
| Attribute | Apollo | Seamless.ai |
|---|---|---|
| Entry price | from $588/yr | ~$1,764/yr |
| Pricing transparency | Published | Demo-gated |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Verified email | ✓ | ✓ |
| Mobile / direct dials | ✓ | ✓ |
| Intent data | ✓ | ✓ |
| Website visitor ID | – | – |
| CRM enrichment | ✓ | ✓ |
Feature by feature
A union of both vendors' documented features. A dash means the vendor doesn't list that attribute, not necessarily that it's missing.
| Feature | Apollo | Seamless.ai |
|---|---|---|
| Verified work email | yes | yes |
| Mobile / direct dials | Yes (credit-based) | Yes (credit-based) |
| Intent / buying signals | yes | Add-on |
| Website visitor ID | no | no |
| CRM enrichment | yes | Add-on |
| Multichannel sequencer | Yes (email + call + LinkedIn) | no |
| Built-in dialer | Yes (higher tiers) | no |
| Chrome extension | yes | yes |
| Free plan | Yes, generous | Yes (50 credits) |
| Contract | Monthly or annual (Org: 3-seat min) | Annual; 60-day cancellation window |
| GDPR / compliance | GDPR/CCPA stated; community-data model | Weak (real-time crawl; no TPS/CTPS) |
| US coverage | Strong | Strong (high volume) |
| UK / EU coverage | Weaker: accuracy drops outside the US | Weak |
| Accuracy | no | No published %; users report 20–30% bounce |
Visit Apollo
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Apollo
Pros
- All-in-one, with a large contact database, multichannel sequencer and dialer in one subscription, replacing a multi-tool stack.
- Strong value for money, among the lowest price-per-seat in the category, with a genuinely usable free plan.
- Ease of use is the
- 200M+ contacts claimed with strong US coverage and 65+ search filters.
Cons
- Data accuracy is the recurring complaint, especially outside the US, where independent tests put UK/EU accuracy well below the headline 98.5% claim.
- Bounce rates on Apollo-sourced emails are reported at 15–25%+, higher internationally.
- Its crowdsourced "living data network" model raises GDPR-consent questions for European outreach.
- Support is slow on lower tiers, and billing and account-suspension disputes are a recurring complaint.
Seamless.ai
Pros
- Massive claimed database (billions of contacts) and a genuinely free starter tier.
- Real-time search finds contacts on demand rather than from a stale stored list.
- Ease of use is well-rated (G2 4.4/5 from 5,000+ reviews and Capterra Ease of Use 4.5/5).
- Strong US coverage for high-volume prospecting.
Cons
- Data accuracy is the dominant complaint; users report 20–30% bounce rates, well below marketing claims.
- Paid pricing is demo-gated and credit-based, with intent and enrichment sold as add-ons.
- Auto-renewal and a 60-day cancellation window are a recurring billing complaint (per BBB filings).
- International (UK/EU) coverage and accuracy are weak, with no TPS/CTPS screening.
Frequently asked questions
- Is Apollo or Seamless.ai better?
- Apollo edges it overall at 7.4/10 to Seamless.ai's 6.3/10. Apollo leads on pricing & transparency Apollo publishes its pricing; Seamless.ai is demo-gated.
- Which is cheaper, Apollo or Seamless.ai?
- On entry pricing, Apollo is the cheaper way in (from $588/yr vs ~$1,764/yr). Credit models differ, so compare what you actually pay per 1,000 contacts, not just the headline.
- Can I use Apollo and Seamless.ai together?
- Yes, teams often pair a broad database with a specialist tool. Just avoid paying twice for the same coverage; check where Apollo and Seamless.ai overlap before buying both.