Yet another app sale for the Thanksgiving / Black Friday weekend is SwiftKey. Both smartphone and tablet versions of the custom Android keyboard are half off - $1.99 a pop.
For those unfamiliar, SwiftKey is a highly respected Android keyboard replacement that emphasizes predictive suggestions based on Twitter, Facebook, and Gmail usage. There's a really wide range of language support too, which is a must-have for many users. If you're looking for something comparable to Swype with gesture-based typing, you'll have to wait for SwiftKey Flow.