Privacy-focused secure calling, video, conferencing, messaging, and attachments
Silent Phone delivers peer-to-peer encrypted calling, secure video, messaging, and file transfers across Android, Silent OS, and iOS. As part of Silent Circle's Enterprise Privacy Platform, it enables simple zero-touch deployment for enterprises, with 500,000+ total downloads and 4.4K in the last 30 days.
Pros & Cons
Enterprise-grade privacy with peer-to-peer encryption for calls, video, and messaging
Zero-touch, scalable deployment across Android, Silent OS, and iOS
Cross-platform support with remote or in-house training options
Secure file transfers for common formats (PDF, DOCX, MOV, MP4, PNG, JPG)
Not ranked in any top app lists
Broad permission set including location, camera, microphone, contacts, and more; requires careful review
Primarily positioned for enterprise use, which may limit casual consumer appeal
Alternative downloads for the Silent Phone - Secure Calling app
Silent Phone - Secure Calling is a communication app developed by Silent Circle, Inc..
Download Statistics
Silent Phone - Secure Calling has been downloaded 750 thousand times. In the last 30 days, the app was downloaded 4.4 thousand times.
User Ratings
Silent Phone - Secure Calling is rated 3.93 out of 5 stars. The rating is based on 1.9 thousand ratings.
App Information
Silent Phone - Secure Calling is FREE to download. The APK download size is 21.72 MB. The latest version available is 6.15.1. The last update was on February 9, 2026.
Technical Requirements
Silent Phone - Secure Calling requires Android 5.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play January 2013.
Description
Silent Phone serves as the software component of Silent Circle's Enterprise Privacy Platform of devices, software and services working together to keep you and your business safe and secure.
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Comments on Silent Phone - Secure Calling for Android
★★★★★Gregory Potter· Sep 16, 2020
Works great on my Note9. Encrypted voip over VPN, secure real-time transport protocol, end-to-end authentication, and a unique phone number, and developed by the creator of PGP encryption, Phil Zimmermann. What's not to love.
★★★★★Jay Terelli· Nov 12, 2020
Great app need; need email credit card (debit?) for people who can't get it to work or new users its very simple 1. DL app 2 register act.(need an email) 3 LOGOUT OF APP, MAKE SURE U WRITE DOWN ACT LOGIN 4. Login ur email 5 click the verify email (that's why u logout) 6 click on pay $10 mo fee 7 then u have to pay for a ph # the price depends on country, works by a credit system. U charge ur card by the $ u need (credits) u don't pay for the # by cc only credits (this is where most get lost
★★★★★Sophie Smith· Aug 8, 2020
Works very well. However, like all other encryption apps, you need to convince family and friends to use it. I do appreciate the encrypted calling or use the silent phone for a second line feature. The security is worth the price.
★★☆☆☆Woody· Dec 30, 2024
Would be nice to know the price structure before having to hand over personal/business details. Until it's listed, me, my business & my staff will continue to use Signal & pay them a monthly fee, which is totally voluntary, but I like to support worthwhile organizations. I heard about the feature where I can call a person on a landline who doesn't have the app, but it would go through, so the call would still be secure, private & untraceable, but no pricing for that either, which is a real shame
★☆☆☆☆mssta Nick· May 28, 2020
No SMS texts please fix title says phone calls and messaging, but it's only meant for phone calls misleading baD!!
★☆☆☆☆Manish Kumar· Oct 15, 2020
It's a marched application we can't make any account in this application. And also all many other coments are fake
★☆☆☆☆JB Bronner· Apr 1, 2020
The women I grew up with since we were 14 years old and my best friend downloaded this or at least has a bookmark saved of this app.it destroys me inside cause it makes it so hard to trust that she is not cheating on me.I love her so much, I need freed back if a gf downloads this app is she cheating or is she hiding something, please leave me feed back with your opinion , I want to keep her and get married, am I being cheated on...???or lied too.??? Please leave me feed back people,
Google Play Rankings for Silent Phone - Secure Calling
This app is not ranked
Technologies used by Silent Phone - Secure Calling
41 permissions·35 libraries
Subscribe to see full permission and library details
Trust & Safety: Trust/Safety: The app requests a broad set of permissions (location, network state, notification policy, camera, microphone, contacts, accounts, and foreground services) to support secure communications. This is typical for an enterprise-grade security app and warrants user-permission review and mindful data handling practices.
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