Hey PH 👋 I’m a solo teenage dev. I built Ninesmith over the last 9 months of late nights and weekends. Sudoku is my go-to way to zone out, but every existing app feels like a cold puzzle vending machine: zero personality, zero awareness of your style, and endless guilt-trips the second you break a streak. I wanted something different, so I built Ninesmith. It features "The Smith"— an coach that tracks how you actually solve and reflects it back to you (“Third day running you cracked a Hard puzzle before 9 AM”). No shame, no pushy streaks, just insights into your game. What’s inside (Free Forever): Full classic play + daily challenges (zero ads) A dedicated pattern trainer that teaches real solving techniques Built local-first with React Native/Expo (no backend required) Would love your feedback does the Smith concept land well, or does it feel gimmicky from the outside? AMA about the tech stack or design!

Ninesmith - Sudoku

A Sudoku app with a coach who actually notices you

A Sudoku app with a coach who actually notices you