I've been using SwiftKey with my Nexus 7 (2013) tablet for close to a year. It's an amazing keyboard that lets me type in English or Spanish without having to move from the main keyboard; indeed, it also offers suggestions to me in both languages, and they're amazingly on target (especially those in English, since it's had more opportunity to learn my vocabulary in English). I was surprised a day or so ago to learn that it's now free. I think the company sees more revenue coming from charging for new themes, etc., than from having more people buy the app. I hope they're right, since I want to see the program continue to thrive. But I've gotta say that I've been underwhelmed by the themes. I mean, I certainly see some I like, but I doubt I'd pay for them. I'd rather pay for the app and for customizations I care about, but I suspect I'm not like most of the SwiftKey users, except in my enthusiasm for the keyboard.