Aside from network or server difficulties, a bug or software flaw in an iPhone app might cause it to malfunction or become unpredictable. This is more than likely the case if you upgrade the program and it has a problem. As a result, as the app becomes corrupted, it becomes unpredictable. You should examine the potential of corrupted files inside the program or the app itself if the app continues crashing unexpectedly, failing to launch, or not operating at all.
Memory issues - When attempting to utilize specific apps on the iPhone 6s Plus, insufficient memory might trigger similar symptoms. If your iPhone 6s Plus memory is running low, this is most likely the case. In this scenario, what you're seeing are likely signs of performance degradation on the iPhone due to a lack of memory.
Solution
If closing the app doesn't solve the problem and it continues to misbehave or display problems, the next step is to reboot or soft reset your iPhone 6s Plus.
Here's how to do it:
- When the red slider displays, press and hold the Sleep/Wake button.
- To totally turn off your iPhone, drag the slider.
- Press and hold the Sleep/Wake button for a few seconds until the Apple logo shows.
- After that, your iPhone will reset.
Try opening the app again once it has rebooted to see whether it is operating properly.
