Folder Lock - Folder Lock is a security software that helps you to password protect files, shred files, clean history, encrypt the personal documents and much more.

Kleopatra - Kleopatra is a certificate manager and GUI for GnuPG.

Private Photo Vault - Legendary Software Labs LLC introduces a brand new feature-rich privacy protection app known as Private Photo Vault.

GPG Suite - Use GPG Suite to encrypt, decrypt, sign and verify files or messages.

Photo Lock App - Photo Lock App – Hide Pictures and Videos is one of the best privacy protection apps developed and published by Donna Danley.

GnuPG - GnuPG is a complete and free implementation of the OpenPGP standard as defined by RFC4880 (also known as PGP).