HomeAppsToolsCryptexApps like Cryptex Here are some great alternatives to Cryptex by SK Android Apps : Secret Message: Encrypt Text ā 3.8 Letstalk IM ā 3.9 Oversec ā 4.2 AES Message Encryptor for SMS ā 4.3 Messenger SMS - Text messages ā 4.3 Enigma Messenger ā 3.2 Hidden Message : Text to Emoji ā 4.6 BrightChat - Secure Messaging ā 4.4 Messages: Private messaging ā 4.6 SimpleX Chat ā 4.2 Messages Improved ā 3.7 Secure messenger SafeUM ā 3.5 Confide - secure messenger ā 4.4 Secret Emoji: Emoji encryption ā 4.5 Garble ā 3.7 Messages Lite - Text Messages ā 4.3