If you have young children using your iPhone then you probably don’t want them snooping around your apps, accidentally buying new updates and looking at things they shouldn’t.
You should turn on iOS restrictions. To do so, open your iPhone, then head to the settings app. Then, open the “general” tab, and then scroll down to “restrictions”.
There, you’ll see the ability to enable restrictions. You can choose which apps you use them for, choose your own code, and then decide whether you can control in-app purchases, the ratings you want users to see, and plenty of other features as well.
To turn off restrictions, just head back to this menu and then enter your code.