App crash on iPhone 7 but not on simulator

Question

My Objective-c app is working well so far from iPhone 5 to iPhone 6s plus. But 2 days before I got some complaints from some iPhone 7 users, the app is crashing on their phone as soon as they installed the app. And when they tap the app icon also the app is crashing. But when I run it on iPhone 7 simulator I don't get any issue. I don't even have an iPhone 7 device to check this issue. Is there any way that I can catch this issue even using an online tool? Please suggest me a solution. Thanks.

Answer 1

I had the same issue with my old app, then added the permission in Info.plist. like

For Camera:

<key>NSCameraUsageDescription</key>
<string>You can take photos to document your job.</string>

Photo Library

<key>NSPhotoLibraryUsageDescription</key>
<string>You can select photos to attach to reports.</string>

Please check you app for other permission like microphone or other. I hope this will fix your problem.

If you are not satisfied from above answer then try Instuments to check any memory issue or other issue with iPhone 7

Answer 2

Here’s what you’ll need to do to stop the apps from crashing or hanging immediately on open: Install any waiting software update, found in Settings > General > Software Update (it is likely versioned as 10.0.1 and the iPhone 7 may ship with iOS 10.0)

1. Install and let the iPhone reboot as usual
2. Open the App Store
3. Download any new app at all, literally any app, whether it is free or paid does not matter
4. You’ll see a pop-up message saying Terms and Conditions have changed, accept the new terms by tapping on the numerous “Agree” screens
5. Exit the App Store
6. Return to the Home Screen and launch the app(s) that were crashing initially

Source : http://osxdaily.com/2016/09/16/fix-apps-crashing-immediately-new-iphone/