LiftLog

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🚀 Overview

LiftLog is an intuitive, cross-platform gym weight tracking app built with React Native and Expo. It features Material Design 3, AI-powered workout planning, and secure, end-to-end encrypted social feeds. Available on Android, iOS, and the web.

Key Features

• 📱 Runs on Android, iOS, and web
• 🧠 AI planner tailors gym plans to your goals and body
• 🔒 End-to-end encrypted social feeds (opt-in, privacy-first)
• 🎨 Material Design 3 via React Native Paper
• 🌐 Internationalization with Tolgee (10+ languages)
• 🏋️‍♂️ Publish workouts, follow other users, and control your feed privacy
• ⚡ Fast, modern UI with Expo Router and Redux Toolkit

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🌍 Translations

LiftLog uses Tolgee for internationalization and translation management. Translation files are in app/i18n/. A huge thanks to them providing an open source license to LiftLog ❤️.

Available languages:

• 🇦🇺 English (default)
• 🇮🇹 Italian
• 🇩🇪 German
• 🇷🇸 Serbian
• 🇫🇷 French
• 🇳🇱 Dutch
• 🇫🇮 Finnish
• 🇪🇸 Spanish
• 🇷🇺 Russian
• 🇨🇿 Czech
• 🇺🇦 Ukrainian

Want to help translate? Open an issue or PR.

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⚡ Quickstart

Prerequisites

1. Node.js (v18+): Download here
2. Expo CLI: npm install -g expo-cli (Guide)
3. Android Studio (for Android) (Setup)
4. Xcode (for iOS, macOS only) (Setup)

Run the App

cd app
npm install
npm run android   # For Android
npm run ios       # For iOS (macOS only)
npm run web       # For web

Run the Backend API

cd LiftLog.Api
dotnet run

See backend/LiftLog.Api/README.md for backend details.

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🗂️ Project Structure

LiftLog is organized into several projects:

Frontend (app/)

• Main React Native app (Expo)
• Components: components/ (layout, presentation, smart)
• State: store/ (Redux Toolkit)
• Services: services/ (API, business logic)
• Hooks: hooks/ (custom React hooks)
• Translations: i18n/ (Tolgee)
• Navigation: Expo Router

Backend (LiftLog.Api/)

• Dotnet WebAPI for feeds, AI plans, and secure data
• End-to-end encrypted feeds (AES)
• OpenAI integration for workout plans

RevenueCat (RevenueCat/)

• Client library for in-app purchases/subscriptions

Website (site/)

• Source for liftlog.online and privacy policy

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📊 Stats

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🤝 Contributing

Contributions, issues, and feature requests are welcome! See CONTRIBUTING.md (or open an issue/PR).

📚 Documentation

• Feed Process
• Remote Backup
• Plaintext Export

💬 Support & Community

• Discord
• App Website
• Try Demo

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Note: LiftLog was rewritten from the ground up in React Native. The previous .NET MAUI Blazor implementation is in the dotnet branch.