Encrypto - Encrypto lets you encrypt files before sending them to friends or coworkers.

PhoneLeash: SMS/MMS forwarding - PhoneLeash: SMS/MMS forwarding app offers features that let you forward your desired text messages and multimedia messages to your email or your other mobile phone so that you can access them later.

File Lock PEA - Password-encryption of files and directories. File PEA encrypts files and folders with authenticated encryption to protect confidentiality and integrity. The program uses memory-hard key derivation functions to prevent custom hardware attacks.

Cellcrypt - Cellcrypt app provides features so you can enjoy secure conference calling, messaging, and sharing of documents.

EncFSMP - EncFSMP, a program to mount EncFS folders on Windows and OS X.

YAATA - YAATA app offers features that let you send multimedia files such as images, videos, audio, and GIFs, etc.