MahWins
A game tracker for American Mahjong
Records the games your Mahjong group plays so you can see who won what hand. Logging a win takes about a minute, and the stats build up the more you log.
~/apps
Apps
Everything I’ve shipped under my own name since 2010, for iPhone and iPad, the Mac, and Android.
Cron Lab
Crontab editor & explainer
Type a cron expression and see what it means in plain English, when it runs next, and what might quietly break it. Converts to Quartz, Kubernetes, AWS, and more.
Text Editor
Markdown, code & plain text
An editor for Markdown, notes, and code. No account, nothing to set up. Files save as plain text in the Files app and iCloud Drive.
iSplatter
Controlled chaos for your photos
A photo tool for paint splatters, drips, and ink. My first app, released in 2010 and rebuilt from scratch in 2026.
StopWatch
Menu bar stopwatch for the Mac
A stopwatch that sits in the Mac menu bar. Global shortcuts, no drift over long sessions, barely any CPU.
