How to pin an app or setup guided access on an iPad

Set up Guided Access

1. Go to Settings > Accessibility, then turn on Guided Access.
2. Tap Passcode Settings, then tap Set Guided Access Passcode.
3. Enter a passcode, then re-enter it. From here, you can also turn on Face ID or Touch ID as a way to end a Guided Access session.

Start a Guided Access session

1. Open the app that you want. 
2. On an iPhone X or later, triple-click the side button. On an iPhone 8 or earlier, triple-click the Home button.
3. If you want parts of your screen to stop responding to touch, use one finger to circle those areas. You can move or resize the circle, or tap the X to remove it.
4. Tap Guided Access, then tap Start.