I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
Feed Preview for Instagram - Feed Preview for Instagram app helps you in planning and scheduling your future Instagram posts so you can build a strong Instagram fan base.
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 .
Seen: Stories Maker - Seen: Stories Maker app offers features so users can view and use a large number of trending story templates to get rid of all the boring stories and can gain more exposure.
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Preseters - Preseters is an app by ArtHouse Design Studio that lets you access the complete list of available presets for Lightroom so you can download them to your mobile phone without much of a stretch.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.