The check-in system is an installed product supported on four platforms: Windows, MacOS, iOS, and Android. See this article for instructions on how to download, install, and set up a check-in station.
Opening the check-in system is as easy as launching program on your computer:
Windows: double click on the program on your desktop or search for it using Windows Search in the lower left of the screen.
MacOS: double click on the program in the Applications folder or use Spotlight to locate it.
iOS/Android: open the app on your phone.
You can also launch it from within a browser by logging into your One Church account and then clicking on the "Launch Check-In" button near the top of the side menu. Then finally click on the big Launch App button that appears in the pop up. This simply opens the product installed on your device. If you do not have it installed, then nothing will happen.
Upon launch, any public events that are currently occurring will be listed to choose from. If there is only one, then it'll be automatically opened.
Via an Event
Each event itself also has a button in the upper right to open the check-in system if the event is set to track attendance in the event options. Clicking on the Launch App button in the resulting pop up will also simply open the installed product on your device. If you do not have it installed, then nothing will happen.
Tips
Internal events can only be accessed by clicking on Launch Check-In within the event.