Threema offers end-to-end encryption, self-destructing messages, and supports various types of media sharing. It doesn't require a phone number and instead uses a unique Threema ID. Threema: Threema is a private messaging app that prioritizes user privacy. Wire supports messaging, voice and video calls, file sharing, and collaboration features. It allows you to sign up using just your email address, and offers end-to-end encryption for all communications. Wire: Wire is another secure messaging app that doesn't require a phone number. Signal supports individual and group chats, voice and video calls, and even allows you to send self-destructing messages.
It offers end-to-end encryption for all messages and calls, and you can create an account using only your email address. Signal: Signal is known for its strong privacy and security features. It offers a wide range of features such as group chats, voice calls, and file sharing. Telegram: Telegram is a popular messaging app that provides end-to-end encryption and allows you to create an account using just your email address.
