Follow the steps below and test the app after each step.
Restart the app
Close the app and open it again.
Restart your device
Update your device software and your apps
Update your device to the latest version of iOS.
Update your apps:
- Open the App Store and tap Updates.
- If updates are available, tap Update All.
- If asked, enter your Apple ID password. The updates will download and install.
You might need a Wi-Fi connection to update some apps.
Install another app from the App Store
If your installed app won't open, download and install a free app that isn't on your iOS device. This should reset your Apple ID authorization.
Remember to use the same Apple ID that you used to download the app that you're having issues with.
Reinstall the app
Remove the app from your device and reinstall it. Remember that deleting an app also deletes its data.
- Delete the app.
- Press the Home button.
- Go to the App Store and download the app again.
- Wait for the app to download, then open it from the Home screen.
If the download stops, you can resume it.
Contact the developer
If you see the issue again, contact the developer of the app for help:
- Find the app in the App Store.
- Tap the app and tap Reviews.
- Tap App Support.