NetworkSpy vs Whistle
| NetworkSpy | Whistle | |
|---|---|---|
| Free plan | Yes | No |
| Free trial | Yes | No |
| Paid from | $1.50/mo | — |
| Open source | No | No |
| Platforms | Linux, macOS, Windows | Android, iOS, Linux, macOS, Web, Windows |
| Free plan | Yes | — |
| Platforms | desktop | — |
| Request/response editing | Yes | Yes |
| Breakpoint rules | Yes | — |
| Traffic replay | Yes | Yes |
| Response mocking | Yes | Yes |
| WebSocket inspection | Yes | Yes |
| Proxy chaining | — | Yes |
Both are listed in Best Web Debugging Proxies. On Specifiction, NetworkSpy scores higher on our published basis.