Car Check USA is an iPhone app developed by Infinite Loop Development Ltd that allows users to check car registration numbers with the records held by the US government. The app aims to help users detect cloned cars, which could indicate a stolen vehicle.

The app offers two options to check the registration number of a car. Users can either type in the number plate manually or take a picture of it with their camera to save time. Car Check USA is not limited to the USA only; it also operates in other countries such as India, Australia, South Africa, and New Zealand.

Overall, Car Check USA is a useful tool for anyone looking to buy a car and wants to ensure it is not stolen. The app is easy to use and has a simple interface that provides accurate information quickly.