Progressive Overload Tracker

A React Native (Expo) mobile app for tracking strength-training progress using the progressive overload principle — gradually increasing weight, reps, or volume over time.

Tech stack

• Framework: React Native + Expo SDK 51
• Database: SQLite via expo-sqlite (promise-based API)
• State: MobX + mobx-react-lite
• Navigation: React Navigation (Drawer + nested native stacks)
• UI: Tamagui
• Persistence (prefs): AsyncStorage
• i18n: i18next + react-i18next (EN, DE, ES, RU, TR)

Getting started

npm install
npm start          # Expo dev server
npm run ios        # iOS simulator
npm run android    # Android emulator
npm run web        # Web

Scripts

Command	Description
npm start	Start the Expo dev server
npm run ios	Run on the iOS simulator
npm run android	Run on the Android emulator
npm run web	Run in the browser
npm run lint	Lint with ESLint
npm run fmt	Format source with Prettier

Project structure

app/
├── features/progress/       # progress calculation, unit conversion
├── navigation/              # drawer + stack navigators
├── pages/                   # screens (home, about, add/result, history, settings)
└── shared/
    ├── api/                 # SQLite operations
    ├── constants/           # muscle keys, unit keys, themes, languages
    ├── i18n/                # translations (en, de, es, ru, tr)
    ├── lib/                 # formatters and error helpers
    ├── stores/              # MobX stores
    ├── theme/               # Tamagui config and global styles
    ├── types/               # shared TypeScript types
    └── ui/                  # reusable components