Cryptoid aims to create a mobile application which will allow users to encrypt texts with various methods e.g. with matrices , send them via email text message, etc. and decrypt existing codes.This is the second alpha. You can encryptdecrypt messages using matrices, and sharing is available as well.List of features: Matrices from 2x2 to 4x4 can be edited, saved and used in encryptiondecryption. Messages can be encrypted and encrypted messages can be decrypted using automatically generated inverse matrices. ASCII or UTF8 characters from 32 to 126 and 10 are available for encryptiondecryption. These include all letters in english alphabet, numbers, punctuation marks, new line character and some more. Encrypteddecrypted messages are saved automatically. Encrypteddecrypted messages can be shared as plain text via applications on your device.You are encouraged to visit the project page, study the source code, share your experience, suggest features and contact the developer to make this app better.