Silent Phone 4+

Secure Calling & Messaging

Silent Circle, LLC

    • 3.7 • 79 Ratings
    • Free



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 6.14.3

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

Ratings and Reviews

3.7 out of 5
79 Ratings

79 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

Developer Response ,

Thanks for using Silent Phone. Regarding using a wired connection, if you're able to get your iPhone or iPad set up to use a wired connection, then Silent Phone will happily use that connection. Silent Phone also runs on M1 Mac devices, and will happily use a wired connection there as well.

ceo & president ,


This is a very difficult system to figure out. If you don’t sign up first on their website then down load the app then good luck nothing works right. Even when you do sign up correctly if you have a problem or questions good luck with that as well. It will take two days for them to get back with you for every question you have. You could be waiting for weeks before you get a answer. They have no direct customer service only email and wait. It’s terrible ! Sometimes you service will go off when your on auto pay for no reason and then try to get it on again. Nope not happening. You must wait for weeks to get it back on. It’s it’s the money that keeps this company from having a real customer service then charge more for God sakes. People will pay extra for great service rather then have to wait for days and weeks to correct an issue. It goes without saying service rules.

Developer Response ,

We're terribly sorry to hear that our support left you with a bad experience. We agree that it goes without saying that great service wins. We're investigating to see what went wrong in your case so it doesn't happen again. We reply to all requests within 24 hours on business days, and most often, we reply within a few hours. If you haven't seen a response in that time, please check your junk folder as it's probably there. Silent Phone is for enterprises and other organizations with multiple users on a team. We assign individual account managers and arrange conference calls for onboarding and to make sure all issues are solved.

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.

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


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