Origami Diagram is an Android app that provides over 250 DIY models to create paper animals, objects, and toys. The app offers a visual paper folding instructive experience for users who have a basic understanding of origami. It is important to note that this app is not a game and physical papers and activities are recommended.

The app's interface is simple, easy to navigate, and offers a variety of models to choose from. Each model comes with a step-by-step visual guide that is easy to follow. Users can save their favorite models and create their own library. The app is free to download and is a great resource for those interested in hobbies and crafts.