kiwi-for-gmail

Install command: 
brew install --cask kiwi-for-gmail

Name: Kiwi for Gmail

Enhances Gmail like a full-featured desktop office productivity app

https://www.kiwiforgmail.com/

Cask JSON API: /api/cask/kiwi-for-gmail.json

Cask code: kiwi-for-gmail.rb on GitHub

Current version: 4.6.2

Requirements: macOS >= 10.15

Analytics:

Installs (30 days)
kiwi-for-gmail 2
Installs (90 days)
kiwi-for-gmail 11
Installs (365 days)
kiwi-for-gmail 65