How I Built an Offline-First AI Gym App in Flutter with SQLCipher + Gemini AI

The Problem I Was Solving Most fitness apps sync your health data to the cloud. I wanted an app where everything stays on-device — encrypted and private. No subscriptions, no cloud dependency. So I built AI Gym Mentor in Flutter. The Architecture 1. Encrypted Local Database with Drift + SQLCipher The biggest technical challenge was implementing encrypted local storage. I used Drift (formerly Moor) as the ORM and SQLCipher for encryption on top of SQLite. This means al...