I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
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.
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 .
NightCap Camera - NightCap Camera is an exceptional tool that is used significantly in low light and night time to make dark photos looks like they were made in full light, developed in the market by Realtime Dreams Limited Inc.
PicsArt - Explore 100,000,000+ awesome images and photos on the web
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.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.