Facebook App Permissions: ads_read vs read_insights

Question

Could someone please clarify what is the difference between ads_read and read_insights permissions? My use case is the following: I have a FB app which can be used to help user create ad campaigns. What I want to do is to get basic statistics for those campaigns (clicks, impressions, ctr) and display it to the user. Which one of these permissions should I request? Both seem to allow for some kind of analytics and dashboard building.

Answer 1

Which one of these permissions should I request?

Both

In your use case, it looks like you don't need to send data, so read_insights should do the work.

But ads_read and read_insights have the exact same note :

"You may also use this permission to request analytics insights to improve your app and for marketing or advertising purposes, through the use of aggregated and de-identified or anonymized information"

And this tutorial suggest to use both too