Hand switching software aids for smartphones

Imagine using the keyboard with one hand/thumb by swiping keys. Is there some software which will teach a person to be ambidextrous by somehow (in some ways I cannot imagine), contribute to correcting each key press when writing words by figuring out what the user is trying to type and displaying day a dark red circle around the missed key/keys for the user to repress.

I would like to come up with a mechanism to help the transition process from one hand to the other, but I cannot figure out how to do it. Thanks.