Next-level
secure communication

The best app for encrypted messaging and calling.

Privacy for your
conversations

The best secure communication app gives you confidence in the privacy of your conversations. With Ciphr, you can prioritize your privacy when connecting with friends, family, and coworkers.

More than just
end-to-end encryption

Protecting your right to privacy requires you to stay ahead of data security risks. Multi-layered encryption protocols, advanced endpoint security, configurable security controls, and Post-Quantum protection give you more ways to secure your communications.

explore security

Email or phone number
not required

Enjoy the privacy of a Ciphr ID (CID) by creating a Ciphr account without a phone number or email address. Your Ciphr ID becomes your unique identifier. Ciphr doesn't collect or track personal information to optimize your privacy.

More ways to
communicate securely

Encrypted
messaging & group chats

Bring one-to-one messaging and group chats into the world of Post-Quantum protection with Ciphr's PQ-ECC end-to-end encryption.

PQ-ECC
ECC448
AES-256

Secure
voice calls

Make one-to-one encrypted calls protected by Post-Quantum encryption for the most secure conversations. Peer-to-Peer calls ensure that all call data is transmitted directly between contacts without the use of Ciphr servers.

PQ-ECC
ECC-P256
AES-256

Full of
security-first features

Self-destructing
messages and emails
Redact & revise
messages
No email or phone
number required
Private
clipboard
Lock messages
from sharing
Encrypted
backups
Zero-knowledge
groups

Ciphr Security

Post-Quantum
Cryptography
(PQ-ECC)
Prepare for the next generation of data security risks. Protect your message and call data from the power of cyber attacks enabled by quantum computers with multi-layered encryption protocols.
Composite Key
Brute-Force
Protection
Ciphr's Composite Key provides brute-force protection whether your device is online or offline. Unique to Ciphr, this feature provides the strongest defence against brute-force attacks.
User Controlled Keys
Private encryption keys are generated and stored locally on the device hosting your Ciphr apps. Only you have access to your private keys, so only you have access to your data.
Argon2
Argon2 Key Deriviation Function makes it harder for a malicious attacker to guess your password by running multiple rounds of hash functions.
Perfect Forward Secrecy
Each message and call from Ciphr is encrypted with a unique ephemeral encryption key for a deeper level of protection for your conversations.

Learn more about
Ciphr's security

ciphr security

Get the PQ-ECC Whitepaper

download
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Start using the most
secure communication app
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