A head-to-head comparison of Quantstamp and Consensys Diligence — pricing, the features that actually differ, and which one fits which use case.
Veteran audit firm with 1,000+ audits and strong ongoing communication
Ethereum-native audit team from the company behind MetaMask and Infura
These are the 2 capabilities where the two tools genuinely diverge — the rest of their feature sets overlap.
| Capability | Quantstamp | Consensys Diligence |
|---|---|---|
| Continuous Monitoring | Yes | No |
| Formal Verification | No | Yes |
| Feature | Quantstamp | Consensys Diligence |
|---|---|---|
| Manual Audit | ✓ | ✓ |
| Automated Scanning | ✓ | ✓ |
| Continuous Monitoring | ✓ | ✗ |
| Upgrade Management | ✗ | ✗ |
| Multi Sig Governance | ✗ | ✗ |
| Public Reports | ✓ | ✓ |
| Emergency Response | ✓ | ✓ |
| Contract Library | ✗ | ✗ |
| Formal Verification | ✗ | ✓ |
| Bug Bounty Management | ✗ | ✗ |
Pricing models differ substantially between these two.
Quantstamp
Custom
Consensys Diligence
Custom
Watch out: Professional-end pricing.
Watch out: Ethereum/EVM-focused, not multi-ecosystem.
Consensys Diligence edges ahead on our editorial score (4.7/5), but these tools aren’t straight substitutes. Pick Quantstamp when 1,000+ audits and a long track record matters most to your workflow; pick Consensys Diligence when first-party ethereum pedigree via consensys is the priority. The deciding factor is usually the trade-off you can least afford — Quantstamp means accepting that professional-end pricing, while Consensys Diligence means ethereum/evm-focused, not multi-ecosystem.
Consensys Diligence carries the higher editorial rating (4.7/5 vs 4.5/5), but they solve different problems. Quantstamp is the stronger pick when you need 1,000+ audits and a long track record. Consensys Diligence wins when first-party ethereum pedigree via consensys.
Both are priced on request — expect quote-based pricing rather than public tiers.
Quantstamp's main limitation is that professional-end pricing. For Consensys Diligence, ethereum/evm-focused, not multi-ecosystem. Weigh these against how you actually plan to use the tool.
In most cases yes — many teams run both, using each where it's strongest. Since Quantstamp leads on 1,000+ audits and a long track record and Consensys Diligence on first-party ethereum pedigree via consensys, the two are often complementary rather than mutually exclusive.