Qlty (formerly Code Climate Quality) vs DeepSource
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
From $20 per contributor/month (Pro; Enterprise $30)
Free tierFrom $24 per user/month (Team, billed yearly)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Priced per contributor. Free for K-12 and universities, 10% off for registered non-profits.
Team includes a $100 annual AI Review credit per user; Enterprise adds self-hosting and SSO on a quote.
Free tier
Free plan with unlimited contributors, 1,000 analysis minutes and 100 AI autofixes a month.
Free for public repositories, with 1,000 PR reviews a month; 14-day trial plus AI Review credits on paid plans.
Open source
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Established
Qlty Software (spun out of Code Climate) · since 2011
Established
DeepSource · since 2019
Strengths
- Maintainability grading is easy to communicate to non-engineers.
- Coverage and quality tracked together in one PR check.
- Free for open source.
- Autofix commits remove the tedious half of acting on findings.
- Low false-positive rate keeps developers engaged with the tool.
- Cheap and quick to adopt.
Limitations
- Letter grades oversimplify and can drive the wrong behaviour.
- The Code Climate to Qlty transition means older documentation, URLs and integration guides still say Code Climate.
- Velocity, the companion engineering-metrics product, was sunset — do not buy expecting it.
- Narrower language coverage than SonarQube.
- Smaller vendor with less enterprise governance tooling.
- Autofix still needs review — it is not unattended.
Best for
Teams that want a simple maintainability signal in pull requests.
Teams that want static analysis developers do not resent.
All of these integrate with: GitHub, GitLab, Bitbucket, Slack, Jira.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.