I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
Bitpoem - Amazing effects and textures for your photos
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 .
Stackables - Advanced and comprehensive effects layering and blending app
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Readymag - Readymag is a design toolkit that helps create immersive digital experiences without developers in days, not weeks.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.