I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
New Google Photos - Shared suggestions, libraries and photo books
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 .
Viso - Beautiful minimal image viewer for MacOS
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Google Photos - All your photos are backed up safely, organized and labeled automatically, so you can find them fast, and share them how you like.
PicsArt - Explore 100,000,000+ awesome images and photos on the web