StealthChat is an industrial strength chat and phone call app for professionals that value real privacy and security. StealthChat uses advanced end to end encryption to ensure that only the sender and recipient have access to the content of the message or phone call.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
Seer - A Windows Quick Look Tool in Qt.
Element.io - Secure messaging app with strong end-to-end encryption, advanced group chat privacy settings, secure video calls for teams, encrypted communication using Matrix open network. Riot.im is now Element.
IrfanView - IrfanView ... one of the most popular viewers worldwide.
Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.