UI Browser 3 is a Universal app. It runs on an Intel-based Mac, and it runs as a native process on an Apple silicon Mac during the trial period and with a Paddle registration key. It requires Rosetta translation to run on an Apple silicon Mac with an eSellerate registration key.
UI Browser 3 is a free upgrade from UI Browser 2 with this qualification: On an Apple silicon Mac, you must run UI Browser 3 under Rosetta translation in order to continue using a UI Browser 2 eSellerate key issued on or before June 30, 2019. To run UI Browser 3 natively on an Apple silicon Mac, you must use a UI Browser 2 Paddle key issued after June 30, 2019, or purchase a new Paddle key.
UI Browser 3 requires macOS Sierra 10.12 or later. It has been verified through macOS Big Sur 11. It recognizes new Accessibility features that Apple has added to macOS over the years. After the 30-day free trial period expires, it can be run with an existing eSellerate registration key for UI Browser 2 or a Paddle key.
Apple's GUI Scripting technology was officially introduced in Panther as a standard feature of Mac OS X. Scripts written using the GUI Scripting technology run on all computers equipped with Panther or newer, but some GUI Scripting features require newer OS versions. Apple successfully concluded the GUI Scripting public beta test on Jaguar, and the beta version of the underlying GUI Scripting software for Jaguar is no longer publicly available.