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Cellcrypt Mobile™ is a downloadable application that runs on off-the-shelf cell phones such as Android™ and iPhone® smartphones and uses government-grade security for protecting sensitive voice calls against interception. Cellcrypt Mobile uses encryption algorithms that are recommended for military and government secure communications and its secret keys never leave the mobile device. The product has been tested by third parties and validated to several government standards including US NIST FIPS 140-2 (certificate #1310) for its cryptography
Cellcrypt Download

Communicate Securely

Anytime, Anywhere

Phone Call

Voice Calls

Secure calls can be made over any IP-based network, including 5G, 4G/LTE, 3G/HSDPA, 2G/EDGE and WiFi.
HD quality with low data and battery use

Fully encrypted End-to-end standards-based key establishment providing mutual authentication.


Perfect Forward Secrecy (PFS) and unique keys per-session

  • NIST SP800-56A C(2,2) Full Unified Model with
    Bi-lateral Key Confirmation

  • Authentication using NIST approved ECC curve P-384

1. Open Cellcrypt APP

2. Open your contact List


3. Select the group and press call

Illustrations are based on Android OS, experience may vary on iOS, Windows Phone and Desktop.

Conference Calls

Secure and easy conference bridge by selecting a group of contacts. 
Call only with mutual authenticated and authorized users.  
No need for passwords nor PINS from participants.
Smart Phone


Instant and encrypted messaging service that support text, photos, videos, voice notes and other large files. 
Enhanced Data at Rest encryption protects all files and media stored within the app.
New key granted for every message or file sent.

End-to-end standards-based key establishment with mutual authentication

  • NIST SP800-56A C(1,2) One-Pass Unified Model

  • Public key fingerprint displayed in message dialog and contact details for vocal confirmation​

Symmetric Cryptography


Dual ciphers - RC4 with 384-bit key and AES-CTR with 256-bit key

FIPS SP 800-38 – AES in CTR mode and AES in GCM 


On Premise or in the Cloud
The Cellcrypt Secure Switch infrastructure can be installed and operated fully on-premise within your data center or can be hosted as a cloud-based solution for reduced infrastructure and running costs.
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