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.   

WinPhone interface design is totally different from other platforms. SafeUM secure messenger has been developed taking into account this operating system requirements and its Metro design.

Our convenient user menu is superimposed over the multi-touch technology which makes the application so quick it simply slides under your fingers.

SafeUM  bright original design looks special in WinPhone turning the Love Tiles in bright, contrasting labels. This operating system is considered to be the golden mean between iOS and Android. We used that when creating the menu logic and interface usability.