I use Snapseed on Android. It's a practical app with many photo editing tools
I like how I can edit my photos here,
InstaBeauty – Makeup Camera! - InstaBeauty – Makeup Camera app comes up with features to help you in accessing an extensive collection of makeup styles and filters to edit your selfies.
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 .
CreamCam - CreamCam called itself a selfie filtering application but offers a portrait enhancement features and tools to its users.
PicsArt - Explore 100,000,000+ awesome images and photos on the web
Adobe Photoshop Mix - Cut out and combine images, change colors and enhance your photos on mobile.
Pixelmator - Pixelmator is an image-editing application for Mac and iPad.