My library has a staff iPad. We are in the process of replacing an AWE computer with an iPad. During the webinar, Cathy reminded me that you can share the same app to multiple devices logged into the same account. In storytime, I can demonstrate an app using the staff iPad and then kids can try it out after storytime on the library's public iPad.
If you want to learn more about apps in storytime and media mentorship, take the free online class Digital Storytime offered by DPI.