Share your experience!
When I do multiple tap on the screen, the whole screen zooms in, literally. Including the font size, it gets larger. This usually occurs when I play games that require multiple taps e.g. to focus attacks to an enemy, to get rid of frozen/stun attacks, etc. This also occurs when I accidentally taps a picture more than twice to zoom it in, and when I do, the whole screen just zooms in not just the picture. Any way to fix this? 
Thanks for the answers. 
Don't worry!! Go to settings >Accessibility> Magnification gestures>turn off