iphone apps won't open because they need update, even i have turned off automatic updates in settings. So when I am offline or with slow internet I cannot use app. How can I solve this?
The behaviour varies from app to app. I have several Apps which will need an update but will continue to work even without updating.
If you are experiencing any difficulty with third-party apps then please contact the app developer directly --> How to contact an app developer - Apple Support
Try to optimize the range of the mobile network, see this Apple article:
If you see No Service or Searching on your iPhone or iPad
iphone apps won't open because they need update even if i have turned off automatic updates
