My friend is convinced that the slowing of his iPhone 4S is part of a vast Apple conspiracy. I'm not completely persuaded.
I mean, sure Apple has sent out updates to iOS that are arguably a step in the wrong direction, like that whole Apple Maps fiasco. But I believe the main culprit for decreasing smartphone performance (from any phone) is software cruft. Sometimes, you just have to do a little housekeeping.
So here's what I suggest. First, take a minute to get rid of any bulky apps you never use. Dive in to Settings>General>… Read more