I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
VSCO - VSCO® is an art and technology company empowering people everywhere to create, discover, and connect. CompanyVSCO® is a trendsetting art and technology company that .
HD Camera for Android - HD Camera for Android is a tremendously used mobile camera app that brings all the advantages of using a full-fledged camera.
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Pixtica - Pixtica is a full-fledged photo editing app that lets you enjoy image modification in a way like never before, developed by Perraco Labs Inc.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
SLOW SHUTTER CAM - SLOW SHUTTER CAM is an app presented in the market by Cogitap Software to take the photo capturing experience to a whole new level by taking photos after adjusting the shutter speed.