Apps I designed and shipped to the App Store — built in SwiftUI, mostly solo. From orthodontic tracking to mahjong analysis to card games. All free.
Wear time, trays & smile diary
A companion for clear-aligner and retainer wearers. Track daily wear time toward a 22-hour goal with a live timer and progress ring, watch a color-coded calendar fill in, and keep a timestamped smile diary as your treatment progresses.
Photo recognition · tenpai analysis · discard advice
A Sichuan-mahjong analysis tool. Point your camera at a hand and it recognizes the tiles, tells you whether you're ready to win, lists every winning tile, and ranks your best discard by shanten distance.
Luck and decision
A fast, partnership trick-taking card game for four players. Bid, race to 50 points across six tricks a round, and outplay opponents with a 24-card deck — solo against a strong on-device AI, local over Wi-Fi/Bluetooth, or online in private rooms.
Experience the thrill of chance
A digital revolver probability simulator. Set the number of chambers and bullets, pull the trigger, and watch the real-time odds — a playful decision-maker and a hands-on way to feel how probability works.