Description: Privnote is a free online service that allows users to create text notes that self-destruct after being read. It allows for end-to-end encrypted private messaging.
Type: software
Pricing: Open Source
Description: Signal is a free, open source, encrypted messaging and voice calling app. It offers end-to-end encryption for secure communication. With Signal, users can send encrypted messages, make voice and video calls, and share media with individuals or groups.
Type: software
Pricing: Free