This wonderful app is so much more than just a spelling app. You can use your own words, own spelling, own pictures, and even your own voice! The developers said the main goal for this app was "to give people of various abilities the opportunity to learn to spell the words most meaningful to them," and WOW! They definitely made it highly engaging and very customizable!
Do you call the person who gave birth to you Mom? Mum? Mommy? Mother? It doesn't matter what you say. Just add a picture of that person and your own spelling. While you are at it, add your voice!