Question: Used storage calculation on iPhone
I am using iPhone6 with 16GB storage. My phone works perfectly fine but I am usually struggling with no or very less free storage.
I want to understand how is used storage calculated on iPhone. The summary says I have total 12GB storage (4GB is already taken out for OS and system related files I presume) out of which only 100MB is remaining. So it means I am using 11.9GB storage trough apps/pictures/videos/other files. On the same page there is a detailed usage displayed for each app I have on my phone. If I add up the storage consumed by all the apps, it hardly adds up to 8GB. So where is the remaining 3.9GB used?