Ceerus

Ceerus – end-to-end encrypted voice, video and messaging app with enhanced call quality.


Ceerus is for individuals and enterprises who take security seriously.
- It’s secure. Voice, video calls and messaging are encrypted in transit and on your device. Always.
- You’re in control. Integrate Ceerus into your enterprise systems. Subscribe to our cloud service, or quickly customize and deploy the full architecture on your private network. Be in control of your data.


Ceerus uses Mikey-Sakke, the standard for secure key exchange developed by British Government. Our technology was developed through research with the UK Ministry of Defense, therefore, your communications are military-grade secure.


Ceerus uses your phone's Internet connection (4G/3G/2G/EDGE or Wi-Fi) to provide secure communications.


Use Ceerus for FREE*:
- Send and receive free secure messages.
- Receive unlimited free voice and video calls.
Sign up for premium accounts to use all our secure communications features.


*Data charges may apply. Contact your provider for details.