I began a commercial / hobby project launching toddler focused games into the app stores across iOS, Android and Amazon starting in 2015. It was never meant as a particularly commercial venture, but I didn't realize at the time how much effort was needed to make an app from scratch or to appropriately publicize that kind of work. Of the three apps built, the most polished was called ABC planet, in which you could build sequences of letters and then play with them on a rotating scratch table, altering the playback speed of the audio for the letter.