Board Thread:News and Announcements/@comment-26533925-20151203194947/@comment-24577221-20151203213830

The official word from Big Fish Games is that "there are no current plans for updating the version of My Singing Monsters on our site" and "for the foreseeable future our version will remain at version 1.2.9".

If they want to have access to the features of the mobile-device versions, without switching away from PCs, they'll have to use some kind of Android emulator, such as BlueStacks. Note that there is no way to transfer a game account from Windows to any of the other versions; they would need to start over from the beginning.