Explore effects on light using real-time camera input. View gravitational lensing and photon rings around simulated holes. Adjust parameters to observe different lensing phenomena. Share captured visuals and educational insights.
Calculate tips with customizable percentage options and adjust using left or right swipes. Split bills among users and share receipts via iMessage. Choose to tip before or after tax and view exact totals or rounded amounts.
Track with a daily graph widget. View contribution history and statistics. Supports Apple Watch integration. Syncs with account. Add custom widgets to home screen.
