Fire and Ice app for iPhone and iPad

Immerse yourself in the magic created by the elementals - Fire and Ice. As they battle for dominance, Unwind and move these particles and paint your own interactive art scene with the power of the universe at your fingertips. Your mission, should you choose to accept it, is to unwind and have FUN. Do not underestimate these elementals, for if united (at very high speeds -- HINT --), they will fuse into an unstoppable green force.

This app was made by Ashwat Prasanna, aged 11 years old and a WWDC19 Scholar. He has written a book called Journey through space time (on Amazon) and 5 other apps.