Where can I get a copy of the app’s End-User Licensing Agreement?
Versions of Kiosk Pro sold through the App Store are subject to Apple’s standard End User Licensing Agreement (EULA), as well as the terms and conditions of the App Store and/or the Apple Business Manager depending on how you purchase the app.
These terms clearly state that you must purchase a separate app license for each individual iPad in a public setting as it is used by multiple visitors:
APP STORE PRODUCT USAGE RULES
(i) If you are an individual acting in your personal capacity, you may download and sync an App Store Product for personal, noncommercial use on any iOS Device you own or control.
(ii) If you are a commercial enterprise or educational institution, you may download and sync an App Store Product for use by either (a) a single individual on one or more iOS Devices used by that individual that you own or control or (b) multiple individuals, on a single shared iOS Device you own or control. For example, a single employee may use an App Store Product on both the employee's iPhone and iPad, or multiple students may serially use an App Store Product on a single iPad located at a resource center or library. For the sake of clarity, each iOS Device used serially by multiple users requires a separate license.
Rebranded versions are subject to additional terms, which are available here.