Splitmaster

Splitmaster is a mobile stopwatch app for timing swim or track meets. It tracks per-lane splits across multiple lanes in a heat, lets you edit or delete a recorded split mid-heat, and saves completed heats to a history you can export later. I built it after years of watching my wife and her team hand-timing on multiple watches. I saw a need for a tool that was purpose-built for tracking splits across a whole heat at once, not just a single stopwatch.

The app was built with Expo and Expo Router, running on iOS, Android, and web from a single TypeScript codebase, with React Native Paper for the UI. It's currently in testing via the Play Store's internal testing track, but will release publicly in the future.