Private by Design. Trusted by Default.
Cipher is a blockchain-secured messenger built on the belief that privacy is a fundamental right -- not a feature to be toggled. End-to-end encrypted, fully decentralized, and designed to comply with global data protection standards.
Hey, did you see the latest update?
Yes! The new wallet feature is amazing
Sending you 0.5 ETH now
0.5 ETH Received
Confirmed
Message expires in 5m
Built for Privacy. Designed for Trust.
Every feature in Cipher is engineered with a single purpose: protecting your right to private communication while maintaining full regulatory compliance.
Military-Grade Encryption
Every message, voice note, and file is encrypted with keys generated and stored exclusively on your device. Your conversations remain yours -- always.
No Central Point of Failure
Cipher runs on a distributed blockchain network. There is no central server that stores your messages, no single entity that can be compelled to hand over your data.
You Decide What to Share
Create your account with a cryptographic key pair -- no phone number, no email required. Your identity is yours to control, in full compliance with data minimization principles.
Messages That Respect Time
Enable disappearing messages with customizable timers. Once expired, messages are permanently removed from all devices. No server-side copies, no backups, no traces.
Chat and Transact, Seamlessly
Send and receive cryptocurrency directly within your conversations. Cipher's built-in wallet supports secure peer-to-peer transfers with the same encryption that protects your messages.
Trust Through Transparency
Cipher's protocol is open and available for independent security audits. We believe true privacy requires verifiability. Researchers worldwide can inspect our code.
How Your Messages Stay Private
Cipher uses a multi-layered encryption architecture that ensures no readable data ever leaves your device.
Zero-Knowledge Architecture
Messages are encrypted before they leave your device and can only be decrypted by the intended recipient. Our infrastructure never sees plaintext.
Standards-Compliant Cryptography
AES-256 encryption, Curve25519 key exchange, and HMAC-SHA256 -- the same algorithms trusted by governments and enterprises worldwide.
Compliant by Design
Built with GDPR, CCPA, and international data protection regulations in mind. Privacy by design is our architecture, not just our philosophy.
Get Started in Three Steps
From download to your first encrypted message in under a minute.
Create Your Secure Identity
Download Cipher and generate your unique cryptographic key pair in seconds. No registration forms, no personal information required. Your public key is your address -- share it with people you trust.
Connect with Confidence
Find contacts by sharing public keys or scanning QR codes. Every connection is verified end-to-end. You'll always know you're talking to the right person.
Communicate and Transact Freely
Send encrypted messages, share files, make voice calls, and transfer crypto -- all within one unified, secure experience.
How Cipher Compares
See how Cipher stacks up against traditional messaging platforms.
Frequently Asked Questions
Everything you need to know about Cipher.
Your privacy journey starts here.
Download Cipher for free. Available on iOS and Android.