Communication

8 apps

Signal

Productivity

Private, end-to-end encrypted messenger.

Alternative to WhatsApp

Free · Open SourceWindowsmacOSLinux+2

Slack

Communication

Channel-based messaging for teams.

FreemiumWindowsmacOSLinux+3

Discord

Communication

Voice, video, and text chat for communities.

Alternative to Slack

FreemiumWindowsmacOSLinux+3

Telegram

Communication

Cloud-based messaging app.

Alternative to WhatsApp

FreeWindowsmacOSLinux+3

Skype

Communication

Veteran voice and video calling app.

Alternative to Zoom

FreeWindowsmacOSLinux+3

WhatsApp

Communication

Ubiquitous encrypted messaging app.

FreeWindowsmacOSWeb+2

Microsoft Teams

Communication

Chat and meetings in the Microsoft 365 suite.

Alternative to Slack

FreemiumWindowsmacOSWeb+2

FaceTime

Communication

Apple's video and audio calling app.

Alternative to Skype

FreemacOSiOS