For all the photo viewing & sharing goodness it contains, Instagram still lacks any shade of a way to easily view full-sized photos. And if Facebook & co. still haven't fixed that particular nuisance after all this time, chances are they never will. Don't you worry, though! If you have a rooted Android device with the Xposed framework installed, you have a pretty good chance of getting this functionality in a way that seems very authentic to how Instagram might eventually implement a "view full size" option. Not just that, but the Xposed module we're about to show you adds other functionality as well - rotate left & right, save to device storage, share, and open in browser!
Anyway! Here's what you gotta do to bring Insta into a newly zoom-able state:
How to add view full size, rotate left & right, save, share, and other options to Instagram for Android