Caesar's Cipher is an app that is useful if you want to learn how texts are encrypted and decrypted using the Caesar's Cipher method. The method consists of entering a text that you want to encrypt using an encryption key provided by you. When you provide the text and the key, the app will shift the provided text with the key that you provided, showing you the encrypted text, after you tap on the Encrypt Text button. The decryption procedure is the same as the encryption procedure. The difference is that the decryption procedure is running backwards. The decryption procedure is triggered after you tap on the Decrypt Text button.