Weigh Fun is a simple app that helps kids learn about weight and shopping.
The character in the story is going shopping for groceries on a shopping list, and needs to weigh each item on his list to get the right things. After he has selected and weighed everything on the list, he needs to pay for the items.
This is an iPad app, so some elements on the page could be larger, like the shopping list text.
Bottomline, this is a solid app that covers a key aspect of elementary math education.