End-To-End Digital Check is a useful app that can be used to create or check (verify) digital data offline and in real time! The app uses "Public" keys to decrypt and "Private Cryption" keys to encrypt users data such as face picture, name, phone, email and so on. Anyone can decrypt users encrypted data with "Public" keys, but only entities\users with the correspondent "Private Cryption" keys can encrypt users data. Note that, "Public" keys are not "Decryption" keys. In the other hand, "Private Cryption" keys are the "Encryption and Decryption" keys. In the decryption process, the app uses the "Public" keys to generate their correspondent "Private Cryption" keys, then it uses the generated "Private Cryption" keys to decrypt users encrypted data. The main advantage of using this app as a verification system is for it being really cheap, it does not