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By Kryptos Communications, Inc.

This app is only available on the App Store for iOS devices.


Kryptos is a secure, fully encrypted voice communications application. Kryptos utilizes military grade 256 bit AES encryption to encrypt voice communications before transmission using 2048 bit RSA for key exchange. There is a monthly service fee of $10. If you would like to learn how you can receive a FREE 30-day trial of Kryptos, please visit

Kryptos provides VoIP connectivity for secure calls over 3G, 4G and WiFi. Users will download and install the client software and must then activate their account with Kryptos.

Users will create their own personal unique individual ID. Encrypted, secure calls are made peer-to-peer. Both users must have the software in order to use the functionality.

Kryptos is not a replacement for your mobile or fixed line telephone service. In particular, Kryptos does not allow you to make emergency calls to emergency services. Some mobile network operators may also impose additional fees, or other charges in connection with VoIP, 3G or 4G. Prior to purchasing Kryptos, please check the terms of your mobile network operator agreement.

Kryptos utilizes military grade 256 bit AES encryption and users agree to comply with all export administration and control laws and regulations of the U.S. government as applicable to the export, resale or other disposition of any goods or services purchased from Kryptos. Without limiting the foregoing, these goods are prohibited for export or re-export to Cuba, Iran, Sudan, North Korea, Syria, or any other country that is subject to U.S. economic sanctions or comprehensive export controls restricting such export or re-export, as well as to persons or entities barred from engaging in export transactions by the U.S. Departments of Commerce, State or Treasury.

Developed in alliance with Appetizer Mobile LLC

What's New in Version 1.07

Misc. Revisions

iPhone Screenshots

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Customer Reviews

Clear call quality, simple and easy to use

It only costs $10/month, that's inexpensive for the service being provided (I have to laugh at the people that complain its too much). It was simple to set up and works fine. I did have one time it didn't connect to the person I was calling, but the other party just closed and restarted the App and it connected the next call just fine. Overall very reliable and the call quality I have to say is actually better than many calls on the regular cell phone.


With all of the news regarding ease dropping on phone calls this app gives me a sense of security. Now knowing that our own government has been listening in on personal calls and how easy it is to intercept a cell signal I keep all of my conversations safe globally using Kryptos.

Absolutely worthless

First, you can't get in contact with the company for support. They will not respond to tech support inquiries. The don't return phone calls, nor do they provide and email address. Second, to use the app, both caller and recipient my pay 10 dollars a month to contact only each other. Each user has to pay this.
Third, Kryptos sells your email address and information to third parties. Do not buy this app.

View in iTunes
  • Free
  • Category: Business
  • Updated:
  • Version: 1.07
  • Size: 3.7 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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