clay-hq vs apollo-io
A comprehensive comparison to help you choose the right AI tool in 2026.
Our Pick
clay-hq
clay-hq scores higher with a rating of 8.7/10
Feature Comparison
| Feature | clay-hq | apollo-io |
|---|---|---|
| Rating | 8.7/10 | 8.1/10 |
| Pricing Model | freemium | freemium |
| Starting Price | Free | Free |
| Free Trial | Yes | Yes |
| Founded | 2021 | 2015 |
clay-hq
AI-powered data enrichment and outreach automation platform for sales teams.
Pros
- + 75+ data enrichment sources
- + AI-powered personalized email writing
- + Waterfall enrichment for maximum data coverage
- + Powerful for outbound sales teams
- + Integrates with major CRMs and email tools
Cons
- - Steep learning curve
- - Can be expensive at scale
- - Credit-based pricing is complex
- - Best suited for technical sales teams
apollo-io
All-in-one sales intelligence platform with a 270M+ contact database and engagement tools.
Pros
- + 270M+ contact database
- + Free plan with generous limits
- + All-in-one prospecting and outreach
- + Strong CRM integrations
- + LinkedIn Chrome extension
Cons
- - Data accuracy can be inconsistent
- - UI can feel overwhelming
- - Email deliverability issues reported
- - Customer support can be slow
clay-hq vs apollo-io: The Bottom Line
Both clay-hq and apollo-io are powerful AI tools, but they serve slightly different needs. clay-hq excels at 75+ data enrichment sources, while apollo-io stands out for 270m+ contact database.
Your choice should depend on your specific requirements, budget, and the features that matter most to your workflow.