Quardo - QR Scan & Create

YH Mobile

About this app

NO PERMISSION REQUESTS. PRIVATE BY DESIGN.

Quardo scans QR codes and barcodes, and creates your own, without ever asking for camera access. Scanning runs through Google Play Services, so the camera does not open inside Quardo itself.

There is no account, no sign-in, no tracking, and no ads. Quardo does not collect or share your data. Scan history, favorites, and saved codes stay on your device.

SCAN QR CODES AND BARCODES

Scan with your camera through Google Play Services, or choose a photo or screenshot already on your phone.

Supported formats:
• QR Code
• EAN-8 and EAN-13
• UPC-A and UPC-E
• Code 128, Code 39, and Code 93
• Codabar and ITF
• PDF417
• Data Matrix
• Aztec

SMART ACTIONS FOR SCANNED CONTENT

Quardo recognizes common code types and shows the right next step:
• Join a Wi-Fi network from a Wi-Fi QR code
• Add a contact card to your address book
• Add an event to your calendar
• Open a location in maps
• Open links, phone numbers, email, SMS, and other supported content

CHECK LINKS BEFORE OPENING

Quardo checks links on-device before you open them. It can warn about:
• Disguised addresses
• Lookalike brand domains
• Mixed-alphabet spoofing
• Unencrypted http links
• Shortened links

Nothing is uploaded for these checks.

CREATE CORRECTLY FORMATTED QR CODES

Use the built-in QR code generator to create codes for:
• Links
• Wi-Fi
• Contacts
• Email
• SMS
• WhatsApp
• Phone numbers
• Locations
• Calendar events
• Plain text

Each code type has its own form, so the data is formatted correctly instead of guessed.

CUSTOMIZE YOUR CODES

Choose color presets, square, rounded, or dot modules, corner styles, and error-correction levels. Quardo warns when a color combination has too little contrast to scan reliably.

SAVE, SEARCH, AND SHARE AGAIN

Saved codes keep their styling and are ready to share again. Search your scan history, mark favorites, and keep useful codes close at hand. Your saved library and history remain available offline on your device.

BUILT FOR YOUR DEVICE

Use a light or dark theme, or match your wallpaper with Material You colors. Quardo supports English, Spanish, Portuguese, French, German, Russian, Arabic, Hindi, Japanese, Chinese, and Indonesian.

PRIVATE AND PRACTICAL

Quardo combines scanning, creating, checking, saving, and sharing in one private tool with no permission requests. Scanning depends on Google Play Services. Some actions, such as opening a website or maps, may require an internet connection.

What’s new

• New Quardo name and design
• Faster QR and barcode scanning
• Create and customize QR codes
• Improved link safety warnings
• Searchable history and favorites