mobilizer is a tool generates all icon types seperated to IOS, Android and Windows Phone Project Standards on the fly.

Preserves transparency as it should. 
Scales using mitchell algorithm.(smooth scaling)

installation

mobilizer is portable. no need to install.
just execute and drop a 1024x1024 png file into window. and it generates all icon types seperated to IOS, Android and Windows Phone Project Standards (generates into directory as the same dropped file).

codecanyon-9715704-mobiliconizer-generate-mobile-app-icons-onthefly.zip