Case study: ParagonPro
A smart app for scanning, categorizing and storing receipts. Built with Flutter — available on iOS and Android from a single codebase.
About the app
ParagonPro solves the everyday problem of lost receipts and expired warranties. The user scans a receipt with the camera and AI automatically detects store, amount and products — saving everything in an organized, secure cloud.
The problem
Receipts get lost in drawers, warranties expire unnoticed, and tracking spending requires manual data entry. There was no single, simple tool that combined scanning, categorization and reminders in one place.
Our approach
We designed the app around simplicity: one button scans, AI reads the content, and smart categorization sorts spending automatically. Everything synced to the cloud with full offline support and push notifications.
What ParagonPro does
A complete ecosystem for managing receipts — from scan to complaint.
AI OCR
Automatic detection of store, amount and products from a receipt.
Spending & reports
Clear charts, monthly reports, export to PDF, CSV and Excel.
Warranties
Reminders for expiring warranties and complaint deadlines.
KSeF
Integration with the Polish National e-Invoice System for invoice sync.
Offline mode
Full functionality without internet access.
Security
End-to-end encryption, 2FA and full GDPR compliance.
Built with Flutter
One codebase, two platforms. With Flutter we delivered native quality and 120 FPS smoothness on both iOS and Android — at a fraction of the development time.
"Very useful app. I appreciate the simple, uncluttered design."
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