The SwiftKey (free, with paid themes) keyboard learns your typing habits to turn the gobbled letters you just typed into words that actually make sense. The software stores your learned keyboard use in the cloud, so if you ever get a new phone and reinstall the app, all the data on how you type and the words you most frequently use will be right there in your SwiftKey account. It also offers powerful customization tools, allowing users to rearrange keys or support multiple languages at once.
