- Platform
- iPhone
- Category
- Developer Tools
- Price
- $4.99, one-time
- Made by
- Parent Systems
Requests, details, and diffs
Why did that request fail?
Relay shows the HTTP and HTTPS requests your apps make, right on your phone. Failures stand out, JSON folds open, and any request copies as cURL, diffs against the last call, or becomes a mock.
- Capture HTTP and HTTPS traffic from the apps on your device with one tap
- Failed requests and 4xx/5xx responses stand out, and noisy apps group and collapse
- Foldable JSON, masked secrets, and search across URLs and bodies
- Copy as cURL, diff against the previous call, and export HAR
- Mock any endpoint with a canned response to test error states
- Guided two-step certificate setup that checks each step for you
- Everything stays on your device - no account, no tracking, nothing uploaded
Relay and your data
Relay has no account and no tracking. Captured traffic stays on your device and nothing is uploaded.

