Block YouTube and/or App Purchases on iPhone or iPod Touch
Contributed by David Kirk 
Tagged: Apple iPhone Kids love using the iPhone and iPod Touch. However, parents may want to limit what their children can access through these devices. This simple tutorial shows how to use parental restrictions to block the viewing of YouTube videos or the purchasing of applications.
A friend of mine has a son approaching his teenage years and asked me how to limit access to YouTube on his iPhone. Another friend of mine was worried about giving their kids an iPod Touch for similar reasons. However, there is no reason to be concerned. These devices have excellent parental restrictions that allow the owner to limit what content and features can be accessed. Here is how to do it.
1. Click the Settings 2. Click General
3. Click Restrictions
4. Click Enable Restrictions button.
5. Enter and confirm a 4-digit PIN
6. Select the restrictions you wish.
if you want to limit access to YouTube, slide that selection to OFF. Settings for content, including apps and music, is found at the bottom of that screen.
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i4 said on November 16, 2010
This is a well known way…But when you apply this the icon gets removed completely! So is there any other way so that i can limit the youtube access without removing the icon from the menu?
Rob said on January 29, 2011
Good point, I freaked out when I turned on restrictions, and suddenly my iPhone screens were missing icons, and generally were arranged differently.
I can’t think of any non-jailbreak way to do it. If you put your device in Airplane Mode, and then go to YouTube, it brings you to your settings in one click.
These restrictions are a pain to turn on and off, kind of a hassle if there are features you want on, but have to turn off every time you give the device to your kid (and back on when you take it back).
I’m biased towards BubCap home button covers, so you can lock toddlers in whatever app you want. Well, as long as the app doesn’t have a link that takes you out.
Sarahmint said on June 9, 2011
Thank you, David.
Laks said on December 4, 2011
It is true that YouTube can be blocked using restrictions section on iPhone settings. But pls note that YouTube can still be accessed using safari icon. Hence there has to be a more smarter way of blocking YouTube on the iphone