In this tutorial, you will learn how to limit the use of mobile apps by other users to one app by adding only specific apps to display. Most Android users who don’t like lock patterns, passwords, etc. This guide is useful, or you want to share your phone with others and limit this person to only one application on your phone. Technology advances an era of security and privacy. Almost all social and online transactions can be made on your device. You need a much safer device. If you want to limit other users to just one application on your mobile device, you first need to decide which applications will be available to visitors or other users.
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https://www.cybertechguide.com/2019/08/restrict-pin-android-phone