CheckCheck - Authentication for Collectors, Resellers and sneaker addicts. Use CheckCheck App to authenticate your sneakers by our team of experts who can help authenticate your sneakers by the photos you submit. All items are check manually at least two times by two of our expert Authenticators. Over 1.5M legit checks completed so far! Use our authentication to prove if you think your pair is not authentic. Featured and Trusted by: ComplexSneakers Hypebeast Sneakerfreaker GQ Yahoo Follow our Instagram @checkcheckapp