"French Vocab Games", the site's suite of French learning games for iPhone/iPad, is currently on offer. Download it today to take advantage of the promotional price! The app offers immense value, as for a single purchase it offers multiple French vocab learning activities.
If you are into word puzzle games more generally, then you may also like to check out the recently released LetterMeister.
Free promo codes for both of these apps are regular announced by @BitterCoffey on Twitter.