Yes. While StriveScan is optimized for iPhones and Android phones, any iPhone app will also work on an iPad. When searching the App Store for StriveScann, ensure you switch your search to iPhone apps.
If you have a Wi-Fi Only iPad (no cellular data connection), you will need to create your account, purchase credits, and unlock scanning for the fair you’re attending, prior to arriving at the fair when wi-fi is available. See these article about scanning without wifi or an internet connection.