[Tomte]

That's why "leave disabled".

But Facebook and other popular apps are nagging you to switch it on, so it's still an interesting statistic.

[happytoexplain]

The switch allows the app merely to request tracking, so I'm surprised requesting that the user enable the switch doesn't violate the App Store guidelines (or maybe it does).

[dlhavema]

Pretty sure they are referring to the system level switch that blocks the prompt and auto-denies every app.

[xvilo]

If I remember correctly it does.

[dan1234]

I did switch it on, but only because I was interested to see which apps would try to request the permission.

[xenophonf]

I haven't seen this option presented to me. How would I make sure that app tracking is turned _off_?

Edit: Never mind. I found it under Settings/Privacy/Tracking: "Allow Apps to Request to Track". I might flip it on just to see what nags me about allowing tracking.