Silent Phone

Upgrade your device’s security with Silent Circle’s peer-to-peer encrypted application for secure voice and messaging.

Silent Phone brings our enterprise-grade security features to iOS, Android and Silent OS mobile devices.

Unlimited peer to peer calling

Unlimited talk, text, video and conference calls between Silent Phone members

Secure messaging & file transfers

Completely secure messaging
Send and receive large files up to 100MB per message

Available on iOS and Android

Silent Phone is compatible with most mobile devices and is available on iOS, Android and Silent OS

Easy deployment & management

Simple deployment with no hardware, maintenance, or training required Manage from the web, active directory, or existing MDM

Silent Phone

Scheduled burn functionality

Choose when messages get deleted on both ends


  • Protected from the moment you hit send
  • Encryption is performed on all devices that carry the application.
    Full burn functionality.
  • Cut out the man-in-the-middle
  • Short authentication strings safeguard against attacks.
  • Easy to use
  • No training required. Intuitive and familiar messaging app design.
    Direct access to Technical Support
  • VoIP calling
  • Encrypted calls with any iOS, Android or Silent OS device.
    No hardware or SIM card required.
  • Group messaging
  • Files, photos, video and voice shared securely within groups.
  • Conference calls
  • Up to six users all secured and identified.
  • Video calls
  • Up to 100MB file transfer
  • Scale up
  • Unlimited Secure Voice and Messaging between Silent Circle Members.
    Easily add accounts to accommodate any size team growth.


Monthly subscription
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Useful And Usable. Discover Silent Phone 6.0

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Don’t worry about security
Take care of business instead

Use the latest, user friendly voice and messaging app technology without exposure to man-in-the-middle attacks. Lock down your communication from end-to-end with military grade encryption security solutions. Our systems have no backdoor policy which makes access to information virtually impossible.


Family and friends can install the Silent Phone app to their devices too. This means all communication, both business and personal, remains secure at all times. Don’t worry about security anymore. Make it Silent instead.

Built-in secure messaging in a familiar package

As user friendly as any commercially available messaging app, Silent Phone provides top grade enterprise security. Benefit from burn notice (1 min. – 90 day range), up to 100MB encrypted file sharing, read receipts and voice memo functions.

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.

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