Requestly vs Whistle
| Requestly | Whistle | |
|---|---|---|
| Free plan | No | No |
| Free trial | Yes | No |
| Paid from | $10/mo | — |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Android, iOS, Linux, macOS, Web, Windows |
| Free plan | No | — |
| Request/response editing | — | Yes |
| Traffic replay | — | Yes |
| Response mocking | — | Yes |
| WebSocket inspection | — | Yes |
| Proxy chaining | — | Yes |
Both are listed in Best Web Debugging Proxies. On Samsung Mobile US Press, Whistle scores higher on our published basis.