Head to head
Apollo.io vs Clearbit (Breeze Intelligence)
As a data enrichment API, Apollo.io rates higher on the APIbenchmarks Index, 80.1 to 59.6, a 20.5-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Apollo.io | Clearbit (Breeze Intelligence) |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 80.1 | 59.6 |
Specifications
| Apollo.io | Clearbit (Breeze Intelligence) | |
|---|---|---|
| Best for | Sales engagement plus enrichment | CRM-native enrichment in HubSpot |
| Free tier | 10k credits/mo (verified corporate domain) or 100/mo | No |
| Pricing | Per credit (email 1, phone 8) | HubSpot plan + credit packs |
| Official SDKs | 6 languages | 4 languages |
Is Apollo.io better than Clearbit (Breeze Intelligence)?
On the APIbenchmarks Index, Apollo.io rates higher (80.1 vs 59.6). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
Apollo.io leads by 20.5 points (80.1 vs 59.6) and wins 4 of 4 criteria.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 80 | 58 | |
| Reliability | 84 | 80 | |
| Ecosystem & SDKs | 78 | 55 | |
| Accessibility | 78 | 42 |
Choose Apollo.io if… / choose Clearbit (Breeze Intelligence) if…
- →documentation & dx matters most to you (80 vs 58)
- →reliability matters most to you (84 vs 80)
- →ecosystem & sdks matters most to you (78 vs 55)
- →accessibility matters most to you (78 vs 42)
- →you want a free tier to start (10k credits/mo (verified corporate domain) or 100/mo)
- →you need broad SDK coverage (6 official SDKs vs 4)
- →your use case matches its focus: sales engagement plus enrichment
- →your use case matches its focus: crm-native enrichment in hubspot
Pricing side by side
- Model
- Per credit (email 1, phone 8)
- Free tier
- 10k credits/mo (verified corporate domain) or 100/mo
- Free$0
- Basic$49/user/mo (annual)
- Professional$79/user/mo (annual)
- Organization$119/user/mo (annual)
- Overage credits$0.20 / credit
- Model
- HubSpot plan + credit packs
- Free tier
- No
- Breeze Intelligence credit pack (entry)$45/mo (annual) / $50/mo (monthly)
- 1,000-credit pack~$450/mo (est.)
- 10,000-credit pack~$4,500/mo (est.)
- HubSpot Starter (required platform)from $15/mo
- HubSpot Professional (required platform)~$1,170/mo
- HubSpot Enterprise (required platform)~$4,135/mo
Vendor-published pricing, verified 2026-06-27 (Apollo.io) and 2026-06-27 (Clearbit (Breeze Intelligence)).
SDK and language coverage
Both · 0
None
Only Apollo.io · 6
REST API (HTTPS / JSON)OpenAPI / Swagger specificationApollo MCP serverApollo CLIllms.txt index for AI agentsCommunity-built clients (e.g. Ruby gem EnaiaInc/apollo_io), no official first-party language SDKs
Only Clearbit (Breeze Intelligence) · 4
Ruby (clearbit-ruby gem, unmaintained)Node.js (clearbit-node, unmaintained)Python (clearbit-python, unmaintained)REST / HTTP API (HTTP Basic auth)
Strengths and weaknesses
- +Large database (275M+ contacts, 73M+ companies) with strong US coverage (~80–88% match accuracy)
- +Aggressive pricing that undercuts ZoomInfo/Lusha-class incumbents for comparable breadth
- +Bulk enrichment endpoints (up to 10 people or companies per call) reduce call volume
- –Data accuracy drops sharply outside the US (~60–73% in EU/APAC/LATAM); stale titles common
- –Phone numbers cost 8 credits each yet user-reported direct-dial accuracy is only ~50–70%
- –Credits expire every billing cycle with no rollover and no refund on unused balance
- +Strong, well-regarded firmographic accuracy (80-90% per G2) for US companies with 50+ employees
- +100+ firmographic and technographic attributes across ~50M+ companies
- +Native, deeply integrated enrichment inside HubSpot CRM with auto-fill on records
- –No longer available as a standalone product, requires a paid HubSpot subscription, with no new API keys for accounts created in 2024+
- –Standalone Enrichment, Logo, and Prospector APIs deprecated; no first-party integration for Salesforce, Pipedrive, or non-HubSpot CRMs (lock-in)
- –Weak coverage for SMBs under 50 employees and companies outside North America / Western Europe
Apollo.io vs Clearbit (Breeze Intelligence): questions
- Which has better documentation, Apollo.io or Clearbit (Breeze Intelligence)?
- Apollo.io scores higher on documentation and developer experience: 80 vs 58 out of 100.
- Which is more reliable, Apollo.io or Clearbit (Breeze Intelligence)?
- Apollo.io scores higher on reliability: 84 vs 80 out of 100.
- Do Apollo.io and Clearbit (Breeze Intelligence) have a free tier?
- Apollo.io: yes (10k credits/mo (verified corporate domain) or 100/mo). Clearbit (Breeze Intelligence): no free tier.
- How are Apollo.io and Clearbit (Breeze Intelligence) priced?
- Apollo.io: Per credit (email 1, phone 8). Clearbit (Breeze Intelligence): HubSpot plan + credit packs.
- Which has more official SDKs?
- Apollo.io lists 6 official SDKs, Clearbit (Breeze Intelligence) lists 4.