When you first open a sideloaded app, iOS may show Untrusted Developer. You must trust the signing profile once per Apple ID (or enterprise profile) on that device.
Steps on iPhone or iPad
- Open Settings.
- Tap General.
- Tap VPN & Device Management (on some versions this appears as Device Management or Profiles & Device Management).
- Under Developer App, tap the entry that matches your Apple ID or the app you installed.
- Tap Trust “…” and confirm.
- Return to the Home Screen and open the app again.
If you do not see a profile
- Confirm the app finished installing (check the home screen).
- Try opening the app once so iOS registers the developer entry.
- On iOS 16+, ensure Developer Mode is enabled.
Still broken after trusting?
The certificate may be revoked or the app may need a refresh: