"10 Frame Fill" is an educational application designed to help children practice recognizing additive "10 Families," such as 1 and 9, 2 and 8, and so on. Users can set the 10 Frame to fill in sequence or randomly, using contrasting color chips to determine the answer. Additionally, there is an option to display corresponding number sentences.

The iPad version of the app offers the feature to show select number sentences either one at a time or all types that were chosen. On the other hand, the iPhone/iPod version presents one randomly selected number sentence at a time. Developed as part of the NumberSense Project at Augustana College in Rock Island, IL, "10 Frame Fill" aims to enhance children's math skills in an engaging way.