How do I activate ZBrush for iPad?

ZBrush for iPad is activated and licensed by using a Maxon account with an active ZBrush subscription or an active Maxon One subscription. 

When launching ZBrush for iPad for the first time, it asks for you to sign in using a Maxon account.  When signing in with a Maxon account that has an active ZBrush subscription or an active Maxon One subscription, ZBrush will then be activated.

If you need to switch to another Maxon account after having already signed in, you can change accounts through the Account Settings screen, accessed through the person-shaped icon in the upper right corner of the ZBrush for iPad-- then clicking Sign Out.

In rare cases, ZBrush for iPad may not initially provide a Maxon login screen and is instead asking you to choose between Free or purchasing a subscription.  If this happens, choose the Free option, then click the person-shaped icon in the top right to then sign in using your Maxon account.