You may wish to have your iPad configured to “lock” the user to only access your Wherewolf check-in app. Restricting access to other apps is a feature built into Apple’s iOS and is easy to do. It stops your guests from exiting the app and opening other apps on your iPad.
Apple provides excellent details on how to use Guided Access to manage accessibility to your iPad – just follow this link: https://support.apple.com/en-nz/HT202612
Restricted access on your iPad will ensure that customers do not hit the ‘home’ button and then access other apps installed on the device.