This is sort of a companion app to Infinite Painter. Infinite Design is made by Sean Brakefield also. This app is mainly for creating symmetrical designs with the advanced symmetry functions. The symmetry functions are: horizontal, vertical, angular, radial, and kaleidoscope. It has 5 pen tips. The pens have special effects such as blur, emboss, and shadow. It also has layers, import, and export functions. You can also export directly to Infinite Painter. It also has stroke editing, guides, and polygon shapes. I really like the symmetry functions for making quick intricate designs. Right now there are some stability problems (Save often!), but I suspect they will be addressed in the next big update. Here is the UI and a design I created with this app.