Silent Phone provides enterprise-grade encrypted voice, video, and messaging. Our end-to-end security protects your business, its reputation, and its valuable intellectual property from spying eyes. With Silent Phone, your team can discuss important matters across continents with the same confidence as if you were all in the same room. Silent Phone is developed by Silent Circle, the world leader in enterprise privacy solutions.


- Privacy and security trusted by businesses and governments around the world
- Simple "zero-touch" deployment across your organization
- Integrated enterprise user management with Silent Manager
- Secure voice and video calls with our unique Security Words
- Secure high-definition conference calling and group messaging
- Burn commands destroy all copies of sent messages
- Burn timers automatically redact old messages
- Voice memos speed communication and replace insecure voicemail
- Read receipts and delivery receipts give your teams situational awareness
- Securely send documents, videos, images, and other files
- Silent World offers calling to/from traditional phone numbers with enhanced security
- Standards-compliant Single Sign-On (SSO)
- Scheduled training available for your teams

What’s New

Version 6.12


- You can now share links and images from anywhere in iOS using Silent Phone share extension.

- When you burn a message while offline, a placeholder is shown until the burn command can be sent.

- You can copy the username / phone number shown in the user information view to clipboard.


- Removing your avatar image from the side updates avatar image correctly.

- Groups with explicit names sync properly.

- Fixes several issues where the main conversation view wasn't updated correctly on new messages.

- Address book contacts are now reliably linked with conversations, if needed.

Every release of Silent Phone, including this one, has important fixes and enhanced performance.

Ratings and Reviews

3.9 out of 5
62 Ratings

62 Ratings

Disappointed___22 ,

Improve the security

The app is good. But modern smart phones are capable of using the internet via a wired ethernet connection. I have 2 smart phones and I can surf the internet faster using my wired ethernet connection but I cannot connect Silent Circle to the wired ethernet connection. By using a wired ethernet connection instead of WiFi the user will prevent an ad hoc anonymous connections, evil twin and honey pot connections. Would it be that difficult for silent circle to modify their app to give us a choice if we want to use silent circle via WiFi or wired ethernet. These nefarious connection are just as dangerous to our privacy as talking on a regular cell phone. Please modify the app to give us the option of using Silent Circle via a wired ethernet connection

what_the_heck ,

Latest update is causing app to crash

Hi SC Dev team,
I’ve been using the app for 4.5yrs on an iPhone 5S. The most recent updates made is causing intermittent crashes when the app tries to connect to your server (red-blue- to green).

Developer Response ,

Thanks for the report. We just released Silent Phone v6.5 and it contains many fixes and improvements. If you would, please try the upgrade, and if you're still seeing any issues, contact our support team at -- they'll work with you to collect details so our team can understand the issue and fix it for all customers.

urmouthsTrouble ,

iOS 13.1.2 caused issues

The app was great been using for a week now and today it’s not showing full text of what I write it only shows the first line of about 5 words then it’s blinded . Please fix

Update! Thanks for the update version. If anybody dealing with the new iOS update and having issues with calls or texts showing full screen when writing text . Silent Circle new update fixed my issue I had with mine not working so I bump there customer service up to five stars as to fixing it fast! Thanks again to silent Circle Services.

Developer Response ,

Thanks for testing our update and reporting back. Sometimes problems do come up with new iOS versions, but we'll always have an update out quickly to make things better. If you ever do see something wrong with Silent Phone, be sure to contact our highly-skilled customer support team. They'll make sure that our engineers know about any problems and will keep you fully informed.

App Privacy

The developer, Silent Circle, LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

  • Siri

    Get things done within this app using just your voice.

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