Any team that works on product development is familiar with the feeling of growing excitement before the product launch.

Although we always respond to each user personally, here is the answer for everyone: "Yes, you personally may now forget the phrase "it's not a phone conversation": all your voice and video calls are encrypted in such a way that neither mobile operators, nor internet providers, nor public Wi-Fi networks, nor SafeUM developers, nor anybody else can decrypt your conversations and chats.”

Isn't it possible to talk to Windows' owners and ask them to develop WinPhone further? 
But... We did not call them. Windows Phone is their product. They decide - whether to make it better or to kill it.
As they chose "to kill" - we stopped upgrading/supporting/thinking about/... WinPhone app too. 
Life is beautiful but volatile.

Windows Phone users are joining SafeUM testers team today! Testing of Android and iOS versions is very successful and we want to thank YOU, our users! SafeUM Team is very often asked If there'll be a Windows Phone version of SafeUM. Now we are ready to announce its beta testing.

To participate in testing, you have to leave an application on our site or our official Facebook page. All people, who applied, will get a detailed instruction. We are looking forward to your suggestions, comments and reviews about SafeUM. Authors of the most constructive feedback will get free Premium subscription for a year.

Encrypted messenger SafeUM is a truly secure app. We developed several encryption schemes and algorithms that provide high  cryptographic security level. When you first log in the app, you can generate Public and Private encryption keys based on the Passphrase.

A passphrase is a set of words or symbols known only to you. A passphrase is never transmitted to our servers and is not stored on the device. Be sure to remember your Passphrase, otherwise, you will never be able to get access to the history of your encrypted chat. Only the copy of your Public key is stored on our servers.