App won't open on iPhone running iOS 26

Some users are experiencing an issue when upgrading their iPhone to iOS 26.

To resolve this issue:

1. Delete the CookBook app
2. Turn your device off
3. Turn your device back on
4. Reinstall CookBook directly from the App Store

Don't worry, your recipes are stored safely on our CookBook cloud, so will be there for you when you log back in again.

If you're still experiencing issues, please reach out to us team@cookbookmanager.com

Updated on: 14/06/2026