Silent Circle is a secure communications company offering mobile devices, software applications, and communication management services to the enterprise.


Silent Phone

Private, encrypted communication and secure file transfer on any device, for everyone in your organisation.

  • Unlimited Secure Voice/Messaging between Silent Circle Members
  • Up to 100MB File Transfer
  • Full Burn Functionality
  • Video Calling
  • Conference calling for up to 6 callers
  • Direct access to Technical Support
  • Available on iOS, Android, and Silent OS

Silent World

Talk to anyone on any network with Silent World. Silent World calling extends the reach of Silent Phone to make or receive calls from standard mobiles or land lines. With Silent World, calls have enhanced security over conventional calls. Your leg of the call is encrypted, keeping you safe from local eavesdropping threats. Communicate privately to mobile and landline phones anywhere in the world.

Silent OS

Only Blackphone runs on Silent OS, an enhanced Android operating system that delivers privacy without compromise.

Blackphone 2

Blackphone is the world’s first smartphone built from the ground up to be private by design. Now with a faster processor, more RAM and a larger display.