GetApp's Category Leaders in Instant Messaging & Chat

Telegram Messenger is a cloud-based mobile and desktop messaging platform supported by native apps on most popular operating systems and devices, allowing users or user groups to connect and conduct voice calls, send messages, multimedia and files of all types across an end-to-end encrypted service

Google Workspace is a suite of apps from Google which offers a number of tools to communicate and collaborate with colleagues, store files, and manage data