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How Zangi Offers Privacy
In Ways that Others Don’t

Zangi uses 3 levels of robust encryption (including end-to-end encryption), securing the entire journey of your content and metadata, from start to finish, and during transport.

Zangi servers have no user communications. We has refused to collect or have access to your data, thus eliminating the possibility of monitoring, intruder entry, or backdoors leading to your personal data.

3 Levels of Encryption

Zangi Secure Messaging app's multi-level military grade encryption scheme ensures the complete confidentiality and authenticity of calls and messages, even across the most vulnerable or hostile networks.

 Encrypted proprietary handshaking mechanism

1. Encrypted proprietary handshaking mechanism

Used for encrypting authorization and session key exchange (encryption algorithms: ​RSA-2048).


Dynamic channel encryption

2. Dynamic channel encryption

Used for encrypting each session between the client apps and the server ensuring the security of data transport (encryption algorithms: ​RSA-2048, RC4+)


End-to-End encryption

3. End-to-End encryption.

Encryption keys exist only on user devices and nowhere else (encryption algorithms: AES-256, Curve25519, ECDH, HMAC-​SHA256​​).

All encryption and decryption happens directly on the devices. This guarantees that no third party — not even the server operators — can decrypt the content of the messages and calls.

Technical overview

Zangi encrypted messaging app uses leading-edge cryptography to protect messages and calls between sender and receiver, as well as the communication between the app and the servers. Zangi encryption algorithms works transparently in the background and don’t need to be activated — they are always on.

Strength of encryption:
— RSA-2048 and RC4+ for client-server data transport encryption
— Advanced Encryption Standard (AES-256) for symmetric encryption
— Elliptic Curve (Curve25519) cryptography for authentication
— Elliptic Curve Diffie-Hellman (ECDH) for key agreement
— Secure Hash Algorithm (HMAC-SHA256) for message digest
— Customized TLS/Noise for encrypting the transport layer

Secure Communication app Without Compromises

Secure Communication
Without Compromises

No Backdoors

No Backdoors
Unlike other providers, Zangi does not create intentional flaws in its cryptosystem to bypass encryption.

No Profiling

No Profiling
Your privacy is never compromised. Zangi does not sell analytics or usage data to anyone.

Email Registration

Email Registration
If users don’t want to use their phone number, email address registration is possible on Zangi Secure Messenger, with a unique username.

No advertising

No advertising
No ads, no banners, no popups, no takeovers – there’s none of that. Zangi is ad-free, and will always stay that way. The company is fully funded by corporate customers, and not dependent on any other means of funding.