Casha
A personal finance tracker that doesn't get in your way.
Most finance apps make you feel like you're filing taxes. Casha doesn't. It's built around one idea: tracking your money should take seconds, not minutes. Clean interface, zero clutter, everything exactly where you'd expect it.
What it does
Casha gives you a real-time picture of your finances without overwhelming you with features you'll never use. Add a transaction in two taps, see your balance update instantly, know exactly how far into your monthly budget you are — all from a single screen.
It's not trying to be a spreadsheet. It's trying to be the app you actually open.
✦ Features
Balance Card The centerpiece of the dashboard. Your total balance, rendered on a customizable gradient card with a gyroscope-powered 3D tilt effect. Long-press to edit the gradient colors and type — linear, radial, sweep, or solid.
Income & Expense Tracking Every transaction gets a category, an icon, an optional note, and a date. The list is instantly searchable and filterable by type. Nothing is buried.
Category Breakdown A dedicated screen with pie and bar charts showing exactly where your money comes from and where it goes. Switch between expenses and income with a single tap.
Monthly Budget Set a spending limit and watch a progress bar fill up in real time. Goes red when you're over — politely, not aggressively.
Multi-currency Support USD, EUR, BYN, RUB — pick your primary currency in settings. Exchange rates are fetched automatically.
Biometric Lock Optional fingerprint protection on launch. One toggle in settings, zero friction in daily use.
Dark & Light Theme Follows your system theme automatically. Both themes are fully designed — not just inverted colors.
Localization English and Russian, switchable in settings. Date formats, month names, category labels — everything adapts.
Amount Formatting Choose between compact (1.2K) or full number display depending on how you think about money.
📱 Screenshots
 |
 |
 |
 |
🛠 Tech Stack
| Layer | Technology |
|---|---|
| Framework | Flutter 3 |
| State management | Riverpod |
| Navigation | go_router |
| Charts | fl_chart |
| Storage | shared_preferences + SQLite |
| Fonts | Google Fonts (Poppins + Nunito) |
| Sensors | sensors_plus |
| Auth | local_auth |
🚀 Getting Started
Prerequisites
- Flutter
^3.11.1 - Android SDK (min API 21)
- JDK 17+
Clone & run
git clone https://github.com/koloideal/casha.git
cd casha
flutter pub get
flutter run