What are some alternatives?
When comparing Kiwi for Gmail and nPOPuk, you can also consider the following products
Shift - Shift is the ultimate email client for managing Mail, Calendar, Drive, Slack, Asana, Jira, Evernote, and all your other favourite apps
PopTrayU - Have you fallen in love with the fabulous email notifier program Poptray, but you're running a...
Airmail - Airmail is a lightweight and lightning fast mail client for Mac.
POP Peeper - POP Peeper is an email notifier that runs in your Windows task bar and alerts you when you have new...
Mailbird - Mailbird is the best email client for Windows 7, 8 and 10
Mia for Gmail - A desktop email client for your Mac, without a browser !