iPhoto.360 Selfie Camera App is a very comprehensive photo editor app and pretty much everything you could ever want to do on your android phone or tablet.
Features include:
+ Apply a variety of Photo Effects
+ Auto-Enhance: fix any photo with one click!
+ Crop, Flip, Rotate
+ Sharpen and Blur
+ Redeye Removal
+ Adjust Colors and Saturation
+ Adjust Brightness and Contrast
+ Teeth Whitening... seriously, no kidding.
+ Draw On Your Photos
+ Apply Text
+...