Currently, not all devices are able to download the app. We are working on an upgrade to fix this. In addition, we will be changing the download name from "History Check" to "Travel-ING On" and making other improvements. Thank you for your patience as we work through this process! We are a grassroots initiative doing the best we can for Alberta and its visitors. If you wish to be notified when the upgrade is completed please let us know by email.