A modern Android workout tracker built with Jetpack Compose that helps you log exercises and monitor weekly training volume by muscle group.
I built VoluMetric to scratch my own itch. As someone who trains seriously, I wanted to track weekly training volume per muscle group — sets done vs. a target — so I could spot under- or over-trained areas at a glance. After trying every popular fitness app on the Play Store, I couldn't find one that made this simple. Most apps focus on logging individual workouts or 1-rep maxes, not on weekly volume balance across muscle groups. So I built the app I actually wanted to use.
- Home Dashboard — Weekly goal card with sets completed and average training intensity, plus a per-muscle-group progress grid
- Workout Logging — Pick a muscle group, name the exercise, log total sets — saved instantly to the local database
- Workout History — Filter all past workouts by All / This Week / Last Week, grouped under TODAY / YESTERDAY / dated headers, with at-a-glance stats (total workouts, this week's count, most-trained muscle)
- Weekly Volume Tracking — Sets are automatically aggregated per muscle group on a rolling weekly basis
- Reactive UI — Stat cards, lists, and progress bars update instantly via Kotlin Flows whenever a workout is logged
| Layer | Library |
|---|---|
| UI | Jetpack Compose + Material 3 |
| Navigation | Compose Navigation + Animated Navigation Bar |
| DI | Hilt |
| Database | Room (with KSP) |
| State Management | ViewModel + Kotlin StateFlow |
| Architecture | MVVM |
com.example.volumetric
├── data/
│ ├── database/ # Room database, DAO, entities
│ ├── mappers/ # Entity ↔ domain model mappers
│ └── di/ # Hilt modules
├── domain/
│ ├── models/ # Domain models (Muscle, WorkoutDetail, HistoryFilter, DateBucket)
│ └── viewmodel/ # ViewModels (LogWorkout, MuscleStats)
├── presentation/
│ ├── composables/ # Reusable UI components per screen
│ ├── navigation/ # Bottom navigation setup
│ └── screens/ # Home, Workout, History
└── ui/theme/ # Colors, typography, theme
- Clone the repository
git clone https://github.com/ritesh423/VoluMetric.git
- Open in Android Studio (Hedgehog or newer recommended)
- Sync Gradle and run on an emulator or device (API 26+)
This project is for personal/educational use.