Android: Seasoned SwiftKey users make typing look easy. SwiftKey houses a heat map feature that shows you where your touch patterns are -- and where your most common mistakes might be made.
This allows you to see how accurate and inaccurate you are with the letters that you hit. You can see whether you have a tendency to hit too far out, too close or dead on, and this can help you figure out which letters and patterns you need to improve on.
If you do all of your typing with SwiftKey, the heat map will change quickly as you get better and better. You can check the heat map regularly when getting comfortable with SwiftKey and use what it tells you to get better quickly and become faster at swiping.
If you want to learn more about the heat map, hit the link below.
Update: SwiftKey contacted us to clarify that the keyboard will automatically adjust to your input habits. You don't have to make any changes at all. Still, it's cool to have a look at to see the source of the little mistakes that happen.
How do I access my SwiftKey heatmap? [SwiftKey]