Apollo.io
Clay
| Feature | Apollo.io | Clay |
|---|---|---|
| Pricing | Free / from $49/mo | Free / from $149/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.6 / 5 |
| Best For | sales-teams, startups, recruiters, agencies, b2b-companies | sales-teams, growth-teams, agencies, outbound-heavy-companies |
| Founded | 2015 | 2017 |
| Contact Database | ✓ | ✗ |
| Email Sequences | ✓ | ✗ |
| Linkedin Integration | ✓ | ✗ |
| Dialer | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Lead Scoring | ✓ | ✗ |
| Enrichment | ✓ | ✗ |
| Data Enrichment | ✗ | ✓ |
| Ai Research | ✗ | ✓ |
| Waterfall Enrichment | ✗ | ✓ |
| Outreach Personalization | ✗ | ✓ |
| Crm Integration | ✗ | ✓ |
| List Building | ✗ | ✓ |
| Ai Messaging | ✗ | ✓ |
✓ Apollo.io Pros
- 275M+ verified contacts database
- Email sequences with A/B testing
- Free tier with 10,000 credits/month
- LinkedIn integration for prospecting
✗ Apollo.io Cons
- Data accuracy varies by region
- Email deliverability can suffer at scale
- Learning curve for sequence optimization
✓ Clay Pros
- Aggregates 75+ data sources in one waterfall enrichment
- AI research agent writes personalized outreach copy
- Flexible spreadsheet-like interface for data manipulation
- Integrates with all major CRMs and sequencing tools
✗ Clay Cons
- Expensive for small teams (starter at $149/mo)
- Learning curve for advanced data workflows
- Credit system can be confusing to predict costs
The Verdict
Apollo.io is built for sales teams and startups, with a focus on contact-database and email-sequences. Clay targets sales teams and growth teams and leads with data-enrichment and ai-research.
On pricing, Apollo.io is the clear winner for budget-conscious users — starting at $49/mo compared to $149/mo for Clay. That $100/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Both tools are a solid fit for sales teams, agencies — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.