You will need to have a Mac running macOS Monterey (version 12) or later, and an Apple ID.
Although you may already have a LIT SUITE subscription on your iPad, your Mac needs to be using the same Apple ID as the iPad in order to use the same subscription. Here’s how you can confirm that the Apple ID on your Mac is the same as the Apple ID on your Mac:
On your iPad, tap on Settings > [Your Name] and your Apple ID will be displayed at the top of the right side of the screen.
On your Mac, click on the Apple Menu > System Preferences > Apple ID and your Apple ID will be displayed at the top of the left side of the screen.
