I have an app that works well in one iphone 4s and another equal device (iphone 4s) I have an issue.
The main difference between them is only iOS version: works well on device running 9.3.2 and doesn’t work in 8.1.3. The device running iOS 8.1.3 has a lot of others apps installed.
The issue: after splash screen I received an white screen and app stops there forever.
Note: I had this same issue in some Androids but I fixed using crosswalk there.