Signal vs WhatsApp

Telegram

Cloud-Based Messaging App with Focus on Speed and Security

Viber

Messengers

Discord

A modern service for group voice, video, and text communication

Slack

A cloud-based platform for team communication and collaboration

Facebook Messenger

Social Networks

Telegram

Cloud-Based Messaging App with Focus on Speed and Security

Slack

A cloud-based platform for team communication and collaboration

Skype

Communication solution with voice, video, messaging, and file transfer

Viber

Messengers

Flock

Task Management