# QA Wolf vs Sonar: who uses which

On usedby, 39 companies use QA Wolf and 53 use Sonar. No company is listed with both yet. Counts include every proof level, job-post signals included. Companies named on both have a confirmed or observed line on each side. Latest check 2026-10-07: 92 of 92 public lines checked.

## Side by side

|  | [QA Wolf](https://www.usedby.ai/tools/qa-wolf.md) | [Sonar](https://www.usedby.ai/tools/sonar.md) |
|---|---|---|
| Public customers | 39 | 53 |
| Confirmed | 32 | 6 |
| Observed | 7 | 46 |
| Signals (job posts) | 0 | 1 |
| Top industries of customers | DevTools & Infrastructure (2), Sales Tech & CRM (2), Automotive Manufacturing (1) | IT Services & System Integration (7), Banking & Mortgages (5), Biotech & Pharma (4) |
| Category | Code Quality & Security | Code Quality & Security |
| Security | SOC 2 Type II, HIPAA ([trust.qawolf.com](https://trust.qawolf.com/), checked 2026-10-07) | — |
| Data processing terms | A data processing agreement is available. ([trust.qawolf.com](https://trust.qawolf.com/), checked 2026-10-07) | — |
| Free trial | — | Free trial or free plan available. ([sonarsource.com](https://www.sonarsource.com/plans-and-pricing/), checked 2026-10-07) |
| Integrations | — | GitHub ([sonarsource.com](https://www.sonarsource.com/integrations/github/), checked 2026-10-07) |

## Published results

Reviewed stories only; usedby did not measure the figures.

- QA Wolf: [Padlet](https://www.usedby.ai/case-studies/padlet-qa-wolf.md): **15%**: “Padlet's PMs get 15% more time each week” (captured by usedby 2026-10-07)
- QA Wolf: [Bubble](https://www.usedby.ai/case-studies/bubble-qa-wolf.md): **nearly 100%**: “the team reached nearly 100% test coverage in four months” (captured by usedby 2026-10-07)
- Sonar: [DEPT®](https://www.usedby.ai/case-studies/dept-sonar.md): **60%**: “issues are identified 60% faster” (published 2025-12-31)
- Sonar: [Xero](https://www.usedby.ai/case-studies/xero-sonar.md): **3,500 repositories**: “onboard 3,500 repositories” (published 2026-04-10)

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Source: https://www.usedby.ai/compare/qa-wolf-vs-sonar · How we check: https://www.usedby.ai/methodology