Threema – a great app for Android that can encrypt your messages so much that except you and the recipient have no one to read them can't, including server operators. The app uses end-to-end encryption and all servers are located in Switzerland. Your correspondence is protected!

Features:

• end-to-end encryption of text messages, images, videos and GPS coordinates
• Synchronize your contacts (optional): automatically searches for other users Threema
• Transfer images and videos
• Providing information to other users about Your location on the map
• Verification of the public keys of Your contacts by scanning a QR code with their mobile phone in the same app

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