Istanbul vs Testwell CTC++
| Istanbul | Testwell CTC++ | |
|---|---|---|
| Free plan | No | No |
| Free trial | No | Yes |
| Paid from | — | — |
| Open source | No | No |
| Platforms | — | Linux, macOS, self-hosted, Windows |
| Coverage types | line, statement, function, branch | function, statement, line, decision/branch, condition, MC/DC, multicondition |
| Supported languages | JavaScript, TypeScript | C, C++, Java, C# |
| Report formats | text, HTML, lcov | HTML, XML, CSV, JSON, text-based formats |
| Pull-request annotations | No | — |
| Coverage gates | Yes | — |
| Free plan | — | No |
| Historical trends | — | Yes |
Both are listed in Best Test Coverage Tools. On Samsung Mobile US Press, Istanbul scores higher on our published basis.