Discord (iOS, Android, macOS, Windows, Linux, Online)
Discord started out as a platform for players to discuss video games… but has evolved into something much, much broader. Depending on how you leverage its features, Discord is now recommended as an alternative to privacy-focused messaging services, like Telegram, as well as enterprise solutions like Slack and Microsoft Teams.
Discord has a private messaging feature that’s very similar to what we’ve seen from WhatsApp, but unlike the Facebook-owned chat app (and some of the other entries in this list), there’s no need to hand over your phone number. Like Threema, you can create your own username to identify yourself on the server-based messaging app. This can be a random garble of letters or numbers, if you want to keep your name and number hidden from the service.
Discord users can create a group chat with up to 10 friends. If you want to add more, you’ll need to start your own Discord server and handle the hosting yourself.
The service has a pretty packed list of features, including group chats, video and photo sharing, the ability to send files, and more. It’s also available on a wide range of different platforms.