If you're still looking for a good app to use on your phone or tablet to take screenshots, you must try the Super Screenshot app and check out its features. It includes a very simple interface where all you need to do is press your phone's buttons for two seconds. Your screenshots can be easily edited by resizing, scribbling, adding text, and adding filters depending on how you want it to be. The SD card holds your screenshots. You can connect to your PC through USB in addition to the built-in sharing to browse and copy the screenshots. And this app is absolutely free and works on Android 4.4 and above.