Find the TutuApp certificate in the list and tap it.Go to Settings > General > Profiles and Device Management.Wait a few minutes and then try the installation steps again – it will work.Exit Settings and take your device out of Airplane mode.Tap on Safari > Clear History and Website Data.Place your device in Airplane mode and open Settings.

Restart your device and download TutuApp again it should now go ahead smoothly.

Delete TutuApp, making sure you remove all traces of it from your device.Click on Safari > Clear Website Data – this error should no longer appear.Close your settings app, and TutuApp will be gone from your device.Tap the option to Remove Downloaded Profile.In the list of app profiles, find TutuApp and tap it.Launch your iOS Settings app and go to Profiles & Device Management in the General section.The error will no longer appear when you use the app.Tap the Tutu App in the app profile list.The app icon will be placed on your device home screen, ready for use.To download apps and games, click it on the app name and follow the on-screen instructions.Use the search bar to download a specific app or browse through the ( apps and games ) categories available in the app.After you download TutuApp, open it by tapping the app icon on your device home screen.Check out the above tutorial in the linked video ( YouTube ).If the app doesn’t install correctly, you must go back and do these steps again, or try other alternative apps like TutuApp. Enjoy the many iOS apps and games on Tutu App.Come back to the home screen and start using the TutuApp without any issues.Enter your iPhone passcode and tap on Install once again when asked.

Now tap on the Install option under the Install Profile option, as shown here.

Tap the Allow option when you see the popup, as shown above.

Beta profiles ios13