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.

    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. There is a monthly service fee of $10.

    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

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    Users review

    from 57 reviews



    Users comments for Kryptos

    John Kotira Jr

    by John Kotira Jr

    Feb 12, 2016  |  "OK"

    For anything to work after downloading, they demand and subscription and payment.

    AsylumServe Communications

    by AsylumServe Communications

    Dec 02, 2015  |  "Great"

    Privacy should be stream lined

    Don Reid

    by Don Reid

    Jan 24, 2015  |  "Poor"

    Font size to input data is ridiculously small for a 5.1 in android screen.

    John Mason

    by John Mason

    Jan 07, 2015  |  "Awesome"

    Been using on my Samsung S5 and Note 8 for over 30 days. Great sound and secure. Feels like I am a secret agent, knowing my privacy is secure... Worked everywhere I've tried it. Home wifi, work wifi, Caribou Coffee and across both my cellular carriers (Verizon & AT&T). Signed up for their GOLD level and happy to be aboard.

    Rosario Cracchiolo

    by Rosario Cracchiolo

    May 25, 2013  |  "Poor"

    Get redphone its better.sorry Mr developer but you charge to much.its a nice application though

    chris gillam

    by chris gillam

    Mar 28, 2013  |  "Good"

    This app works well most of the time but not always. For $10 a month I would expect it to be flawless. I am now using "voip one click" for free encrypted calls and encrypted chat, works well and I have had no problems with it.