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 .
Image to Sketch - Convert images to pencil sketches with AI technology
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Canva - Canva is a graphic-design platform with a drag-and-drop interface to create print or visual content while providing templates, images, and fonts. Canva makes graphic design more straightforward and accessible regardless of skill level.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.
Artboard Studio - Online graphic design app mainly focused on product mockups.