A subscription app for iOS and Android that predicts a user's adult height and builds daily habits around nutrition, sleep and exercise. Features include height prediction, height history, an AI food scanner, sleep logging, daily exercises, weekly insights and an AI growth coach. Users are mainly teens and young adults, and 70% of proceeds come from the US. Launched March 2026. $15.3K revenue and $10.8K net profit since launch, profitable every month. 167 paying subscriptions, 23,000+ users and 4.7 stars across 514 App Store ratings. All growth is organic, from App Store search and 9 TikTok slideshow accounts that are included in the sale. No ad spend to date. Takes 2 to 3 hours a week on TikTok content plus light app upkeep. Running costs are under $170 a month. Native Swift on iOS, React Native on Android. Selling because the founder is moving on to new opportunities.