I'm playing thru android & iPad. Both are sync with Facebook. However, my iPad level is stuck at 500 whereas my android already in level 519. FYI, I have tried delete & reinstall the app.
Hmm, on your iPad, go to your Facebook account and go to the settings section, then the apps section. Find the Candy app and click on it and this should open up the app and force it to synchronize. Try this, let me know how you get on