Counting Bills & Coins is an educational app developed by Stride Inc. It is designed to help users practice identifying and solving math problems with money. With this app, users can count, match, and make change with coins up to quarters and bills up to $20.

The app offers five unique activities to practice money skills. In the "Counting Money" activity, users are required to type the total amount of coins and bills they see. In the "Show Me the Money" activity, users can drag bills and coins to make the total amount shown. The "Making Change" activity challenges users to give customers the correct change for their purchases by dragging bills and coins. The "Matching Amounts" activity requires users to make the amount shown by using a different combination of bills and coins. Lastly, in the "Show Values" activity, users can drag coins and bills to count up and then check their answer.

Perfect for both younger students who are just learning about pennies, nickels, and dollars, as well as more advanced students who want to practice making change up to $99, Counting Bills & Coins is a versatile app that caters to different skill levels.

The app allows users to explore U.S. currency and offers coins ranging from 1¢ to 25¢ and bills ranging from $1 to $20. Users can choose to work with coins only or both coins and bills. Additionally, there are three difficulty levels available, allowing users to see the front or front and back of money and solve more challenging problems.