Secure Phone Apps


Cellcrypt – provides the highest level of protection against call and message interception, within a consumer-friendly app that can be used on virtually any off-the-shelf smartphone.Military grade, end-to-end encryption ensures the complete confidentiality and authenticity of voice calls and messages, even across the most vulnerable or hostile networks.

secure call app

Secure Call use TLS for transmitting metadata (e.g. call requests) to Secure Call servers and end-to-end encryption for transmitting user communication data (e.g. user voice) to other users.

Secure Call tries to best possible combinations to make sure user communications are surveillance and tampering-proof.


Signal messages and calls are always end-to-end encrypted and painstakingly engineered to keep your communication safe. We can’t read your messages or see your calls, and no one else can either.


Secure Phone is an encrypted communication mobile device with an Android-based OS. It is customized on every level to put you in charge of your mobile security. Together with our propriety MDM system and custom apps, it is a perfect protector of your privacy.


Telegram is a messaging app with a focus on speed and security, it’s super-fast, simple and free. You can use Telegram on all your devices at the same time — your messages sync seamlessly across any number of your phones, tablets or computers.With Telegram, you can send messages, photos, videos and files of any type (doc, zip, mp3, etc), as well as create groups for up to 20,000 people or channels for broadcasting to unlimited audiences. You can write to your phone contacts and find people by their usernames.


Every message, file and call is encrypted with a new random key. As of now, breaking just one key would take trillions of years to decipher.

No conversation lives beyond its useful life – you decide when your content gets automatically deleted for good.

Content is encrypted locally on user devices and is only accessible to intended recipients. Wickr never has the decryption keys.


Need some privacy?
Silence encrypts your text messages over the air and on your phone.
Protect your communication in transit and on your phone.

Silence (formerly SMSSecure) is a full replacement for the default text messaging application: all messages are encrypted locally and messages to other Silence users are encrypted over the air.

Silence works like any other SMS application. There’s nothing to sign up for and no new service your friends need to join.

Silent Circle

Completely secure messaging
Send and receive large files up to 100MB per message
Unlimited talk, text, video and conference calls
between Silent Phone members
Silent Phone is device agnostic and is available
on iOS, Android, and Silent OS