PriceLog (Android App)
Jetpack Compose purchase tracker with camera and backup support
A native Android app for logging purchases. Each item stores a name, price, notes, and a photo taken with the device camera. Data lives in a local Room (SQLite) database with a reactive list UI, and the entire database plus images can be exported to a ZIP file and restored later.
Download
PriceLog runs on Android devices. You can download the APK by clicking the button below:.
Download APKTech Stack
Kotlin
🎨Jetpack Compose
🗄️Room (SQLite)
Screenshots
Item Tracking
- •Add items with name and price (in Riyals)
- •Reactive list that updates instantly via Kotlin Flow
- •Detail page with view and edit modes
- •Free-form notes per item
- •Delete with confirmation dialog
Camera & Images
- •Attach a photo to any item straight from the camera
- •Images stored in app-private storage via FileProvider
- •Placeholder image fallback for items without photos
- •Image files cleaned up when an item is deleted
Backup & Restore
- •Export database and all images into a single ZIP
- •WAL checkpoint before export for a consistent snapshot
- •User picks the save/open location via system file picker
- •Safe restore using a temp file swap, then app restart
- •Room auto-migrations across schema versions
App Architecture
Core Components
- •Room Database: Entity + DAO layer with Flow queries for reactive reads and suspend functions for writes
- •Navigation Compose: Two-screen NavHost (list → detail/{id}) passing the item ID as a route argument
- •ActivityResult APIs: TakePicture contract for the camera, CreateDocument and OpenDocument for backup files
- •Material 3 Theming: App-wide color scheme and typography from a shared AppTheme
Data Safety
- •Consistent Backups: Forces a full WAL checkpoint so the exported database file contains every committed write
- •Lock-Safe Restore: Writes the incoming database to a temp file first, since Room holds an open handle on the live one, then swaps and restarts cleanly