Super buggy, but kids like it

This app does get my 5.5 and nearly 4 year old to stand still for 2 minutes to get their teeth brushed. However, it crashes often, particularly from within the "sticker" books and in the Cars book, it has duplicated two of the stickers, and now keeps giving the same sticker repeatedly, sometimes filling in multiple slots at the same time. This included skipping over two of the awards. It also has trouble scanning an Ariel toothbrush, although a cars toothbrush and princess toothpaste are very easily recognized.

Mr.Khubie about Disney Magic Timer by Oral-B, v3.1.3