Are you asking about using 3rd party data or 3rd party APIs?
If this is about their data (and any of their icons/logos, names etc.), you should start by checking their policy documentation on when/where/how to see what they say.
Be sure you have clear permission to re-use their data so you can show Apple during review if they ask.
See 5.2.2 in the ASRGs: 5.2 Intellectual Property
Hi KMT & thanks for your fast reply.
Actually, It's an online survey/form maker that anyone can use to collect data. And yes, they allow their subscribers to embed the form in other websites or apps.
Ah, to -collect- data...
I don't think you'd be setting a precedent. Be sure to follow Apple's 5.1 Privacy guidelines. As always, tho, App Review isn't here, no one here can promise what App Review will/won't accept/reject, there are no pre-reviews.