As far as the clone itself uses CSS transforms (if it's Cordova/Phonegap based), it should be fine and usable on mobile. You can recognize the clones using Cordova/Phonegap/Webview if they use the exact same style as G.Cirulli's 2048. Now, to recognize the clones using CSS transforms, that's more complicated. Check for their last release date, it should be strictly after 2014-03-13 (as CSS transforms were added to 2048's repo that day https://github.com/gabrielecirulli/2048/commit/7c6fd1b2a4acb...), and from there, test the apps.

I rewrote the whole game's code as an exercice soon after it was released, and took special care in using CSS transforms and not creating/forgetting javascript objects constantly (I wish I knew if that last point made a difference in performance on mobile, but I wouln't know how to measure it). I also added a tutorial screen and an animation for a forbidden move.

That's why I can personally recommend my ad-free clone ('shameless plug' and all that), that you can find here: https://play.google.com/store/apps/details?id=com.erwan.game... or by searching "2+2=2048" in the play store/windows phone store. The swiping mechanic works great with it, so please tell me if you find any issues with it.