Kryptos
Free AppAbout Kryptos
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
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
All Application Badges
Free
downl.
downl.
Android
2.1+
2.1+
Android app
App History & Updates
More downloads Kryptos reached 10 000 - 50 000 downloads
More downloads Kryptos reached 5 000 - 10 000 downloads
More downloads Kryptos reached 5 000 - 10 000 downloads
Version update Kryptos was updated to version 1.07
What are users saying about Kryptos
U
by U####:
by U####:
For anything to work after downloading, they demand and subscription and payment.
Z
by Z####:
by Z####:
Font size to input data is ridiculously small for a 5.1 in android screen.
Z
by Z####:
by Z####:
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.
W
by W####:
by W####:
I love you
B
by B####:
by B####:
They try to charge you after signing up. App is being deleted
Y
by Y####:
by Y####:
Doesn't tell you it costs $10/month
Y
by Y####:
by Y####:
I can't really see any reason to use this over Redphone unless you need interoperability with iPhone users or need calling outside of the countries that Redphone supports. Kryptos drains battery because it needs to keep a network connection open. Redphone doesn't because it uses SMS for signaling. Kryptos is $10/month. Redphone is free. Redphone also wins on transparency. We know very little about the Kryptos protocol or codec (AES, RSA - that's it.) Redphone is open source and uses ZRTP which is an open standard. We know, for instance, exactly how Redphone mitigates man in the middle attacks. Csipsimple is another alternative for free encrypted calls using the ZRTP standard. It inter operates with other ZRTP clients like acrobits on the iPhone and Jitsi on desktop computers. Put that together with a free SIP (e.g. Callcentric) account, and you can have cross platform encrypted phone calls for free instead of paying $10/mo.
Y
by Y####:
by Y####:
Works on galaxy note... 10$ monthly subscription monthly though, make sure you use google checkout or paypal, not their own site, my cc 'suddenly' got used by someone else...
Y
by Y####:
by Y####:
Trying to fill the gap from whispersystems sellout. $10. A month? No way. How about $10.00 app?
Y
by Y####:
by Y####:
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.
Y
by Y####:
by Y####:
Get redphone its better.sorry Mr developer but you charge to much.its a nice application though
Y
by Y####:
by Y####:
Not free costs $10/mo to make and receive calls only thing free about it is the interface and registering which has no point if u don't pay the $10/mo
Y
by Y####:
by Y####:
Kryptos is a great app! Doesnt use up my minutes and I can talk to my parents overseas without charges. Good call quality. Easy to use. Kudos Kryptos
V
by V####:
by V####:
Could not get it to work on my droid. You have to know the other party's secret id. Does not integrate with phone contact list. Other apps are free.
Y
by Y####:
by Y####:
I have been using this app now for a week on 4G and 3G and WIFI on my HTC EVO, and have called a few friends around the world that I usually chat with via e-mail most of the time. I have even purchased accounts for them so we have been chatting now all weekend … I highly recommend this app for international calls and local long dist…
Y
by Y####:
by Y####:
You guys did not understand how droid world works
Y
by Y####:
by Y####:
Will Skype work with this softwar?
Y
by Y####:
by Y####:
This program is not god I buy thinking is god but not dont buy you gont to lose your money
Y
by Y####:
by Y####:
Costs10per month.didnt see it, too expensive
Y
by Y####:
by Y####:
110% the real deal!!! Being in the intelligence community, I assure you it is as advertised and well worth $10 a month
Y
by Y####:
by Y####:
Kryptos works great, easy access to phone support and email. P/W recovery via email. Quality product no matter what guys from redphone want to post.
Y
by Y####:
by Y####:
If you forget your password there is NO way to retrieve it! U cant create a new account and the developers wont reply to your emails!
U
by U####:
by U####:
Good idea but redphone still beats it for usability, transparency, and quality.
K
by K####:
by K####:
Cool app
K
by K####:
by K####:
I can't really see any reason to use this over Redphone unless you need interoperability with iPhone users or need calling outside of the countries that Redphone supports. Kryptos drains battery because it needs to keep a network connection open. Redphone doesn't because it uses SMS for signaling. Kryptos is $10/month. Redphone is free. Redphone also wins on transparency. We know very little about the Kryptos protocol or codec (AES, RSA - that's it.) Redphone is open source and uses ZRTP which is an open standard. We know, for instance, exactly how Redphone mitigates man in the middle attacks. Csipsimple is another alternative for free encrypted calls using the ZRTP standard. It inter operates with other ZRTP clients like acrobits on the iPhone and Jitsi on desktop computers. Put that together with a free SIP (e.g. Callcentric) account, and you can have cross platform encrypted phone calls for free instead of paying $10/mo.
K
by K####:
by K####:
Works on galaxy note... 10$ monthly subscription monthly though, make sure you use google checkout or paypal, not their own site, my cc 'suddenly' got used by someone else...
K
by K####:
by K####:
Trying to fill the gap from whispersystems sellout. $10. A month? No way. How about $10.00 app?
K
by K####:
by K####:
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.
K
by K####:
by K####:
Get redphone its better.sorry Mr developer but you charge to much.its a nice application though
K
by K####:
by K####:
Not free costs $10/mo to make and receive calls only thing free about it is the interface and registering which has no point if u don't pay the $10/mo
K
by K####:
by K####:
Kryptos is a great app! Doesnt use up my minutes and I can talk to my parents overseas without charges. Good call quality. Easy to use. Kudos Kryptos
X
by X####:
by X####:
Could not get it to work on my droid. You have to know the other party's secret id. Does not integrate with phone contact list. Other apps are free.
K
by K####:
by K####:
I have been using this app now for a week on 4G and 3G and WIFI on my HTC EVO, and have called a few friends around the world that I usually chat with via e-mail most of the time. I have even purchased accounts for them so we have been chatting now all weekend … I highly recommend this app for international calls and local long dist…
K
by K####:
by K####:
You guys did not understand how droid world works
K
by K####:
by K####:
Will Skype work with this softwar?
K
by K####:
by K####:
This program is not god I buy thinking is god but not dont buy you gont to lose your money
K
by K####:
by K####:
Costs10per month.didnt see it, too expensive
K
by K####:
by K####:
110% the real deal!!! Being in the intelligence community, I assure you it is as advertised and well worth $10 a month
K
by K####:
by K####:
Kryptos works great, easy access to phone support and email. P/W recovery via email. Quality product no matter what guys from redphone want to post.
by U####:
Privacy should be stream lined