Take Control of Your
Money
Flux is a privacy-first budget and expense tracker built for users who want full control over their financial data. The app works 100% offline with no accounts, no cloud services, and no tracking.
Why Flux?
Most finance apps require accounts, online syncing, and analytics tracking. Flux is different.
100% Offline
No signup or cloud sync required. Your data stays on your device.
Privacy-Focused
Privacy-focused architecture. Your financial information never leaves your iPhone.
Fast & Simple
Faster and simpler than traditional money manager apps.
Affordable
More affordable than subscription-heavy competitors.
Core Features
AI Receipt Scanner
Scan any receipt using on-device OCR. The total amount, date, and merchant are extracted instantly without uploading data to servers.
Budget & Expense Tracking
Create categories, set limits, and monitor your spending with clean visualizations.
Siri Shortcuts
Add expenses with voice commands such as “Add 50 dollars to groceries.”
Calendar Heatmap
See your spending behavior over time with a calendar heatmap inspired by contribution graphs. Detect patterns, spikes, and habits.
Widgets
Track daily spending directly from your Home Screen. Optimized for iOS 18.
Spending Forecasts
Flux analyzes your previous expenses and predicts future spending to help you stay in control.
AI Finance Assistant
Ask questions like “How much did I spend on restaurants last month?” and get instant on-device insights.
Unlock Advanced Tools
Designed for power users who want full control.
- Unlimited categories
- AI receipt scanning
- AI finance assistant
- Calendar heatmap
- CSV and Excel export
- Priority support
Transparency & Privacy
Local Storage
All data stored locally using SwiftData.
No Trackers
No analytics and no third-party trackers.
Anonymous
No data collection of any kind. You stay completely anonymous.