Freqsh for Windows Phone
The game contains 90 levels currently, of increasing difficulty. The full version will cost you a little bit of $$$ :-), but you can download a trial version to test out the first 18 levels of the game for free.
My future plans include an iOS version (maybe more mobile platforms later), new content for the game (more levels and more elements/variations). I might make an ad supported “free” version as well.
If you are intersted, please visit the homepage of the game:
Or go directly to the Marketplace:
Freqsh on the Windows Phone Marketplace