PayOnce QR Scanner & Generator

PayOnce QR Scanner & Generator

Scan and generate QR codes with a single one-time purchase.

No ads.
No subscriptions.
No tracking.

PayOnce QR Scanner & Generator is a fast, reliable QR utility designed to respect your time, privacy, and money.

Scan QR Codes & Barcodes

• Fast and accurate QR and barcode scanning
• Works fully offline using on-device processing
• Powered by CameraX and ML Kit
• Clean, distraction-free interface

Scan restaurant menus, Wi-Fi networks, websites, contacts, and product codes instantly.

Create QR Codes (13+ Types)

Generate QR codes for:
• URLs and plain text
• Wi-Fi networks
• Email, SMS, and phone numbers
• Contact cards (vCard)
• Bitcoin addresses
• Social links (X/Twitter, Facebook, WhatsApp)
• App Store links
• Image, PDF, and audio URLs

Customize Your QR Codes

• Choose foreground and background colors
• Built-in contrast validation to ensure scannability
• Optional logo overlay (“SCAN ME”)

Your QR codes stay readable and professional.

Save, Share, Download

• Save QR codes to your gallery
• Share anywhere using the Android share sheet
• Download as image files
• Keep codes stored locally in the app

My Codes Library

• Unified library for scanned and created codes
• Separate tabs for easy navigation
• Sort and manage your QR codes in one place
• Available offline

Privacy & Security

• No ads
• No subscriptions
• No accounts
• No data collection

Protect your saved QR codes with biometric app lock using fingerprint or face unlock.

Designed for Everyday Use

• Dark mode (system, light, or dark)
• Simple onboarding walkthrough
• Accessibility-friendly design
• Built with modern Material Design

Why PayOnce?

Most QR apps charge recurring fees just to unlock basic features.

PayOnce costs $0.99 — one time.
Every feature. Every update. No surprises.

If you want a simple QR scanner and generator you actually own, this is it.

Recent changes:
Bug fixes and improvements:

- Fixed duplicate entries appearing after scanning
- Editing a saved QR code now updates it instead of creating a copy
- WiFi and email QR codes now work correctly with special characters
- App lock now supports PIN and pattern, not just biometrics
- Theme changes apply instantly
- Added undo when deleting codes
- Sharper icons and a cleaner QR preview screen
- Improved camera permission handling