# Silent Circle Silent Phone

Silent Circle Silent Phone is a Secure Collaboration & Messaging product by Silent Circle. It runs in the cloud. Pricing is commercial (contact sales).

Encrypted voice, video, messaging & file transfer app for Android & iOS.

Checked October 2026.

## What is Silent Circle Silent Phone?

Silent Phone is a mobile application for Android and iOS that provides end-to-end encrypted communications for enterprise and government use. It was originally the software powering the Blackphone hardware device, and is now available as a standalone app installable on any existing Android or iOS device.

The app supports encrypted voice calls, video calls, conference calls, and group messaging. It also supports secure file transfers, including documents, videos, and images.

Key operational features include burn timers that automatically redact messages after a set period, voice memos as a replacement for standard voicemail, and read/delivery receipts for messaging. The app supports zero-touch deployment, allowing administrators to roll it out across an organization without requiring manual configuration by end users.

Silent Phone is used by businesses and government organizations. It does not require specialized hardware and can be deployed on standard consumer Android or iOS devices.

Tags: Secure Development, BYOD, iOS, Android Security

## Where it fits in your security program (NIST CSF 2.0)

- [Protect](https://cybersectools.com/guides/building-protect-program-small-team): helps you prevent attacks and keep data safe.

## Quick facts

- Category: [Email & Messaging Security](https://cybersectools.com/categories/email-security) · [Secure Collaboration & Messaging](https://cybersectools.com/categories/secure-collaboration-messaging)
- Vendor: [Silent Circle](https://cybersectools.com/companies/silent-circle)
- Deployment: Cloud
- Company size fit: SMB, Mid-Market, Enterprise
- Pricing model: Commercial (contact sales)
- Features: 9 listed
- Website: silentcircle.com

The full feature and integration lists are on the page for signed-in visitors.

## Where it ranks

No shortlist covers this product's category yet. The closest is [Best Email Security Solutions for Business](https://cybersectools.com/shortlists/best-email-security-platforms).

## Silent Circle Silent Phone FAQ

### What is Silent Circle Silent Phone?

Silent Circle Silent Phone is a product by Silent Circle in the Secure Collaboration & Messaging category. It covers Secure Development, BYOD and iOS.

### What is the pricing for Silent Circle Silent Phone?

Silent Circle Silent Phone is a commercial product. For pricing, visit https://www.silentcircle.com/looking-for-blackphone/ or contact Silent Circle.

### What are alternatives to Silent Circle Silent Phone?

Alternatives to Silent Circle Silent Phone listed on CybersecTools:

1. [Cryptify Call](https://cybersectools.com/tools/cryptify-call) - On-premises encrypted voice, video, and messaging platform for governments and enterprises (Commercial)
2. [Kaymera App](https://cybersectools.com/tools/kaymera-app) - Mobile app for encrypted voice calls & messaging with no server data storage. (Free)
3. [Armour Communications Desktop](https://cybersectools.com/tools/armour-communications-desktop) - Licensed secure communications desktop app for Windows 10. (Commercial)
4. [CommuniTake IntactDialog](https://cybersectools.com/tools/communitake-intactdialog) - Encrypted mobile voice & messaging app for enterprise secure comms. (Commercial)
5. [Tuvis](https://cybersectools.com/tools/tuvis-vis) - Monitors and secures corporate messaging apps with DLP, URL policies, and audit controls (Commercial)

Compare all Silent Circle Silent Phone alternatives at [https://cybersectools.com/alternatives/silent-circle-silent-phone](https://cybersectools.com/alternatives/silent-circle-silent-phone)

### What deployment and organization size does Silent Circle Silent Phone fit?

Silent Circle Silent Phone is available as cloud. It is listed for smb, mid-market and enterprise organizations. Pricing is commercial. Ask Silent Circle for pricing and support terms.

## Compare Silent Circle Silent Phone with similar solutions

- [Silent Circle Silent Phone vs Cryptify Call](https://cybersectools.com/compare/cryptify-call-vs-silent-circle-silent-phone)
- [Silent Circle Silent Phone vs Kaymera App](https://cybersectools.com/compare/kaymera-app-vs-silent-circle-silent-phone)
- [Silent Circle Silent Phone vs Armour Communications Desktop](https://cybersectools.com/compare/armour-communications-desktop-vs-silent-circle-silent-phone)

All alternatives to Silent Circle Silent Phone: [/alternatives/silent-circle-silent-phone](https://cybersectools.com/alternatives/silent-circle-silent-phone)

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Source: https://cybersectools.com/tools/silent-circle-silent-phone

For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any compare page has a Markdown copy too (add .md to its URL).

More on Silent Circle Silent Phone and Silent Circle: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=product-md