telegram

Install command: 
brew install --cask telegram

Name: Telegram for macOS

Messaging app with a focus on speed and security

https://macos.telegram.org/

Cask JSON API: /api/cask/telegram.json

Cask code: telegram.rb on GitHub

Current version: 11.15.1,275322

Requirements: macOS >= 10.13

Analytics:

Installs (30 days)
telegram 2,657
Installs (90 days)
telegram 9,509
Installs (365 days)
telegram 38,140