The September 2026 edition of Cap’n Crunch’s newsletter is now live.
This month, John shares the story behind TimeTrack Invoice—a simple time-tracking and invoicing app he built with cloud AI, Flutter, and Dart. He explains how a hand-drawn interface became a working cross-platform application and what it took to prepare the app for Apple’s App Store.
The issue also includes details about a limited 90-day beta-testing opportunity for people who bill clients by the hour.
You can also browse every past issue in the Cap’n Crunch newsletter archive.