In this video, we break down how a simple mobile app turned into a $20K/month business. But the real story is about how he validated the idea BEFORE writing a single line of code. By the end of this video, you will have playbook you can use to go validate your app. *Get our Mobile App Growth Cheat Sheet:* https://clickhubspot.com/rbh7 Follow Brian: https://twitter.com/brianshinsh Check out Once: https://once.film/ 🔔 Follow the Second Channel: @StarterStoryBuild 🏁 We're hiring: starterstory.com/jobs Chapters: 0:00 - The commitment metric 0:56 - Meet Brian Shin 1:27 - Business breakdown 2:35 - Mobile app growth tactics 3:22 - Founder background 4:25 - App idea 5:48 - Build process 6:35 - Tech Stack 7:07 - Validating the app 8:30 - Validation Playbook 11:23 - How the app works 12:18 - Stop overthinking! 13:15 - Pat and Gus reflections