CypherQR
Contains adsIn-app purchases
Everyone
info
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About this app
Send and receive end-to-end encrypted messages using QR codes.
No servers. No accounts. No tracking. Your data stays on your device.
CyperQR is a privacy-first messaging tool that uses QR codes and modern cryptography to enable secure communication without servers, accounts, or internet dependency.
- How it works
CyperQR uses public/private key cryptography to encrypt messages locally on your device. The encrypted message is converted into a QR code, which can be shared via any platform (WhatsApp, email, etc.).
The recipient scans the QR code on a secure (offline) device and decrypts it using their private key.
βοΈ Key Features
- End-to-End Encryption
Uses X25519 + AES-256-GCM
Only the recipient can decrypt messages
- QR-Based Messaging
Send encrypted messages as QR codes
Scan QR codes to decrypt messages instantly
- Offline Security
Decryption happens entirely on-device
No internet connection required
- Private Key Protection
Keys stored locally using strong encryption (Argon2id + SQLCipher)
Private keys never leave your device
No Servers, No Tracking
No accounts
No cloud storage
No message logging
No servers. No accounts. No tracking. Your data stays on your device.
CyperQR is a privacy-first messaging tool that uses QR codes and modern cryptography to enable secure communication without servers, accounts, or internet dependency.
- How it works
CyperQR uses public/private key cryptography to encrypt messages locally on your device. The encrypted message is converted into a QR code, which can be shared via any platform (WhatsApp, email, etc.).
The recipient scans the QR code on a secure (offline) device and decrypts it using their private key.
βοΈ Key Features
- End-to-End Encryption
Uses X25519 + AES-256-GCM
Only the recipient can decrypt messages
- QR-Based Messaging
Send encrypted messages as QR codes
Scan QR codes to decrypt messages instantly
- Offline Security
Decryption happens entirely on-device
No internet connection required
- Private Key Protection
Keys stored locally using strong encryption (Argon2id + SQLCipher)
Private keys never leave your device
No Servers, No Tracking
No accounts
No cloud storage
No message logging
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
No data collected
Learn more about how developers declare collection
Whatβs new
No Servers, No Tracking
No accounts
No cloud storage
No message logging Nothing, just pure secret.
No accounts
No cloud storage
No message logging Nothing, just pure secret.
App support
About the developer
Ognjen Pavicevic
ognjen@pridvoru.com
Voltino ul. 14
10000, Zagreb
Croatia
