"I see you only have an iOS application. A lot of my visitors own an Android phone. How can they download the application on their Android Device? Is it mandatory for my visitors to download an application?"
The simple answer is Yes!
Visitors don’t need to download any application. They can check in using the check-in link or by scanning a public QR code, this works on most smartphones with internet capabilities.
Attendees do not need to download any application to check-in
Let's get into the nitty gritty
Check-ins on OneTap can be divided into two flows
Admin/volunteer checking-in attendees.
OneTap admins get access to OneTap on three major platforms
Attendees checking-in themselves
iOS or Android phones can be used to scan a QR code to check in and therefore attendees do not require to download any application.

