HomeAppsToolsCryptexApps like Cryptex Here are some great alternatives to Cryptex by SK Android Apps : Secret Message: Encrypt Text ā 3.8 Oversec ā 4.2 Letstalk IM ā 3.8 Hidden Message : Text to Emoji ā 4.6 Color SMS - SMS Messages ā 4.3 Messenger - Text Messages SMS ā 4.3 BrightChat - Secure Messaging ā 4.4 Secure messenger SafeUM ā 3.4 Messages: Private messaging ā 4.3 ASCII message encrypter ā 4.4 Messages ā 4.4 Garble ā 4.0 Secret Emoji: Emoji encryption ā 4.5 Messages Lite - Text Messages ā 4.1 Confide - secure messenger ā 4.3 SimpleX Chat ā 4.2