Apidog vs Katalon
Side-by-side from the Top 11 ranking of The 11 Best API Testing Tools (2026). Last verified July 14, 2026.
The short answer
Apidog ranks higher on Top 11 (#4 vs #6) for Backend engineers, QA automation teams, and platform teams validating REST, GraphQL, gRPC, and SOAP APIs. An all-in-one that folds design, mocking, and testing together.
At a glance
| Apidog | Katalon | |
|---|---|---|
| Top 11 rank | #4 / The 11 Best API Testing Tools (2026) | #6 / The 11 Best API Testing Tools (2026) |
| Score (out of 9.4) | 8.5 | 8 |
| Best for | Design, mock, and test in one tool | Unified API, web, and mobile QA |
| Pricing | $$ (Free tier, paid ~$9-$25/user/mo) | $$$ (Free tier, paid from ~$175/user/mo) |
| HQ | Singapore | Atlanta, USA |
| Founded | 2020 | 2016 |
Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.