General best practice for locking down the device that runs the kiosk, so it stays on the sign-in page and ready for the next visitor.
Android and iOS platforms
Open the location's kiosk sign-in link in the device's browser (see Managing Locations (tied to QR Code Management)), then use its "Add to Home Screen" option. Launching from the home-screen icon hides the browser's address bar and toolbar, so the kiosk fills the whole screen.
Use a tablet dedicated to the kiosk, not one shared with staff for other tasks.
Mount it in landscape orientation at the entry point, within reach of power, and keep it on a reliable Wi-Fi connection.
Turn off notifications on the device so nothing pops up over the kiosk screen.
iOS / iPadOS
Turn off Auto-Lock (Settings > Display & Brightness > Auto-Lock > Never) so the screen doesn't sleep between visitors.
Use Guided Access (Settings > Accessibility > Guided Access) to lock the device to the kiosk page — triple-click the side/Home button to start it, which disables the Home button/gestures so no one can leave the browser.
Apples Video Guide: How to use Guided Access on iPhone and iPad | Apple Support
Android
Turn off screen timeout in Display settings.
For simple lockdown, use built-in Screen Pinning (Settings > Security > App Pinning).
For more control (recommended for unattended kiosks), use Fully Kiosk Browser & App Lockdown Help - Fully Kiosk Browser (Google Play or APK):
Set the location's kiosk sign-in link as the Start URL (Web Content Settings > Start URL)
Enable Kiosk Mode (PLUS licence) to lock the device to that page, disable the Home/volume buttons and status bar, and require a PIN to exit.
Android 12+ needs Device Provisioning (Device Owner mode) for reliable lockdown — plain Kiosk Mode alone isn't enough on newer Android versions.
Optional: Remote Administration (PLUS) for remote monitoring/restart across kiosks, and Settings Auto-Import to deploy the same config to multiple devices at once.
Related Guides
Kiosk Experience and Setup (Device Management Best Practices for Android and iOS)