Apollo.io vs Cardinal
Which Outreach AI tool is better in 2026?
Apollo.io
AI-powered sales engagement platform with 275M+ contacts.
Cardinal
AI Platform for Precision Outbound
Side-by-side
Apollo.io leads on both fronts — more capital raised ($251M) and a lower entry price than Cardinal.
| Metric | Apollo.io | Cardinal |
|---|---|---|
| Taglinei | AI-powered sales engagement platform with 275M+ contacts. | AI Platform for Precision Outbound |
| Foundedi | 2015🏆 | 2026 |
| HQi | US | San Francisco, US |
| Employeesi | 201-500🏆 | 1-10 |
| Neuron scorei | 32 | 44🏆 |
| Total fundingi | $251M🏆 | $500K |
| Latest roundi | Series D · Aug 2023 | Seed · Jan 2026 |
| Valuationi | — | — |
| Cheapest paid plani | —🏆 | Pricing not disclosed |
| Free plani | ✓ Free | ✗ |
| Free triali | ✗ | ✗ |
| Top tier pricei | — | Pricing not disclosed |
| Pricing summaryi | 1 published plans | Pricing not listed |
| Categoriesi |
Capability matrix
Developer-facing capabilities and access signals for Apollo.io and Cardinal.
| Capability | Apollo.io | Cardinal |
|---|---|---|
| MCP support | ✗ | ✗ |
| Public API | ✗ | ✗ |
| Webhooks | ✗ | ✗ |
| OAuth 2.0 | ✗ | ✗ |
| SDK languages | — | — |
| Free plan | ✓ | ✗ |
| Free trial | ✗ | ✗ |
| Verified | ✗ | ✗ |
| Active deal | ✗ | ✗ |
🟢 Strengths of Apollo.io
- Has raised more capital ($251M vs $500K)
- Offers a free plan
- Lower starting price ($49/mo)
- More mature (2015)
🔵 Strengths of Cardinal
- Higher Neuron score (44 vs 32)
- Newer company (2026)
Which should you choose?
Choose Apollo.io if price matters most — it starts at Free · From $49/mo, which is friendlier for teams watching burn. Both AI Outreach tools ship core features, so the cost delta often decides it for small teams and solo operators.
Choose Apollo.io if you want the most established option — it has raised $251M, suggesting more runway for enterprise features, support, and long-term roadmap. For mission-critical workflows or larger teams, that stability often outweighs a lower monthly price.
Frequently asked questions
Apollo.io vs Cardinal — which is better?
It depends on your priority. Apollo.io has raised more capital and is the more established option; Cardinal has broader feature depth. See the side-by-side table above.
Is Apollo.io cheaper than Cardinal?
Yes — Apollo.io's cheapest paid plan is Free, while Cardinal's is Pricing not listed.
Do Apollo.io and Cardinal offer free plans?
Apollo.io: Yes, has a free plan. Cardinal: Paid only.
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