Billfoid, your personal money manager.
With custom pictures for categories and many other features. Try it!

ApCat helps categorizing applications in Android, providing the ability to assign each application into custom categories.

This or That is a fun, fast paced, puzzle game. The object is to separate a list of game pieces into two categories. The game pieces can be put into multiple categories so figuring out the correct categories can be a puzzle in itself! Be fast and be accurate to get to the next level. The game currently has 6 categories to play: Shapes and colors, People, Numbers, Geography, Science, and Animals. More levels to come soon!

Animals Categories is a free application for teaching children to some categories of animals