Privacy-first expense tracker. Track spending offline, scan receipts, manage recurring transactions, and keep your financial data on your iPhone.
The Only 100% Offline AI Expense Tracker. Your Data Never Leaves Your iPhone.
Flux is the privacy-first expense tracker and budget manager that works completely without internet. No accounts. No cloud sync. No tracking. Just intelligent financial control — entirely on your device.
Unlike apps that upload your spending data to remote servers, Flux keeps everything local using Apple's SwiftData. Every transaction, every budget, every AI conversation stays on your iPhone. Always.
WHY FLUX?
• 100% Offline — Zero internet required, ever
• On-Device AI — Powerful features without cloud dependency
• Face ID Lock — Auto-blurs sensitive numbers when you switch apps
• Lightning Fast — No waiting for servers
• Lifetime Unlock — Own it once, forever
AI RECEIPT SCANNER
Point your camera at any receipt. Flux's on-device OCR instantly reads the amount, date, and merchant — even in local decimal formats (comma or period). No upload. No wait. Works globally.
AI FINANCE ASSISTANT & MEMORY
Ask natural questions: "Am I over budget this month?" or "What's my biggest spending category?" Get instant answers. Every AI conversation is saved in the Archive — revisit your past insights anytime. (Premium)
SMART BUDGET TRACKING
Set spending limits with clean progress rings. Budget cards show real-time percentage breakdowns. Edit limits on the fly directly from the list.
RECURRING TRANSACTIONS
Automate weekly, bi-weekly, monthly, or yearly bills. Flux processes pending transactions every time you open the app — nothing missed, nothing forgotten.
SPENDING FORECASTS
Flux analyzes your transaction history to predict future expenses. Stay ahead of overspending before it happens.
CALENDAR HEATMAP
GitHub-style contribution graph for your income and expenses. Spot expensive weeks, identify patterns, and build better financial habits at a glance.
MULTI-CURRENCY WALLET
Track 40+ currencies — USD, EUR, GBP, TRY, JPY, AED, and more. Switch your base currency instantly. Built for digital nomads and international travelers.
SEAMLESS IOS INTEGRATION
• Home & Lock Screen Widgets — Daily totals and budget progress at a glance
• Siri Shortcuts — "Hey Siri, add $50 to groceries"
• Face ID / Touch ID — Full app lock with auto-privacy blur
FLUX PREMIUM
• Unlimited categories, budgets & AI receipt scans
• AI Finance Assistant + full Chat Archive
• Spending forecasts & advanced analytics
• CSV import/export & Eco-Print PDF reports
• Custom category icons
Start free for 7 days. Then $2.99/month or $24.99/year. Or unlock everything forever with the one-time Lifetime purchase.
Your financial life. On your device. Private by default.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Can easily plug in my expense. Pretty straight forward which I love. Thinking of buying the lifetime.
Developer Response
Thank you, I really appreciate that! My goal was to make expense tracking as quick and frictionless as possible. If you decide to go with Lifetime, thank you for supporting an indie developer. And if you have any suggestions after using the app, I’d love to hear them!
What’s New in v2.3.2
Thanks for using Flux! This update focuses on performance, stability, and quality-of-life improvements.
• Added search filters.
• Fixed localization issues.
• Fixed CSV export language.
• Improved receipt scanning date recognition.
• Faster Dashboard with smoother scrolling.
• Optimized Financial Trends performance.
• Faster Calendar Heatmap loading.
• Reduced Home Screen widget memory usage.
More improvements are coming soon!
Version 2.3.2
The developer, Ali Ihsan Gunes, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Ali Ihsan Gunes
Size
19 MB
Category
Finance
Compatibility
Requires iOS 18.6 or later.
iPhone Requires iOS 18.6 or later.
Mac Requires macOS 15.6 or later and a Mac with Apple M1 chip or later.
