Open the app you want to lock
Press the side button or Home button to return to the Home Screen
Use Screen Time to set app limits
Go to Settings
Tap Screen Time
Tap App Limits
Tap Add Limit
Select the app category or specific app
Tap Next
Set the time limit to 1 minute
Turn on Block at End of Limit
Tap Add
Use Guided Access to lock the iPad to one app
Go to Settings
Tap Accessibility
Tap Guided Access
Turn on Guided Access
Set a passcode
Open the app you want to lock
Triple-click the top button or Home button
Tap Start
Use Face ID, Touch ID, or a passcode to lock Notes, Photos, or other apps if supported by the app
Use parental controls for child accounts through Family Sharing
Go to Settings
Tap Screen Time
Tap Family
Select the child’s device
Set app restrictions and limits