iOS apps and small tools by Michael David. Built for the things real people actually do — road trips, weekend games, time at the track, and time on the shop floor.
A road-trip companion with live ETAs to every stop. iPhone & CarPlay.
In TestFlightQuick, distraction-free score keeping for any pickup game. iPhone & Apple Watch.
In reviewTime several cars at once. Built for grassroots racing, autocross, and track days.
ReleasedSheet-metal bending calculator for the shop floor. K-factor, V-die, tonnage, flat pattern.
In developmentD4 Enterprises is the apps practice of Michael David, an independent iOS developer. Each app is built with the same principle: solve one real problem cleanly, respect the user's privacy, and don't get in the way.
Every app on this page is built and maintained by one person. If you find a bug, want a feature, or just want to say hello, I'd love to hear from you.