Desktop Tiers for Automate


This page outlines the desktop Operating Systems and Browsers we provide, and the tiers we provide them in. Tiers limit the maximum number parallel tests one user can run on a single terminal type e.g. IE 11 on Windows 7. These tiers are applicable to Browser Automate.

Our Current Desktop Tiers

Listed below are maximum number of parallel tests we support for each Tier, and the Browser-OS combinations which fall under each Tier.


Note: We derive tiers and their values based on the popularity of a browser/OS in the market. We also periodically update our tiers based on market trends and usage trends on our platform.

Tiers OS Browsers
Tier 1
(Up to 200 parallel tests)
Windows 10
Any Chrome
Any Firefox
Internet Explorer 11
Windows 7
Any Chrome
Any Firefox
Tier 2
(Up to 100 parallel tests)
Windows 10
Edge 16
Windows 7
Internet Explorer 11
OS X High Sierra
Any Browser
OS X Sierra
Any Browser
OS X Mojave
Any Browser
Tier 3
(Up to 40 parallel tests)
Windows 10
Edge 15
Edge 17
Edge 18
Windows 7
Internet Explorer 10
Internet Explorer 9
Internet Explorer 8
Windows 8.1
Any Chrome
Any Firefox
Internet Explorer 11
Windows 8
Any Chrome
Any Firefox
Internet Explorer 10
Windows XP
Any Browser
OS X El Capitan
Any Browser
OS X Yosemite
Any Browser
OS X Mavericks
Any Browser
OS X Snow Leopard
Any Browser
OS X Lion
Any Browser
OS X Mountain Lion
Any Browser
OS X Catalina
Any Browser