Do you want to make some extra money? Do you have a jar of change at home? Did you ever wonder if any of those coins are worth more than face value? This application will help you locate U.S. coins that are known to have Mint errors when they were created. Coin collectors love these error coins and depending on the error, are willing to pay nicely for rare errors. Rich Off Error Coins will allow you to search for these errors by looking for specific types of errors, by coin and by year. It will outline what you should look for and where to look on the coin. Find one of these coins with an error, sell it and this app will easily pay for itself. Good luck and have fun!