iPhone history

Hi, if you mean by "past iPhone purchasing history" are purchases that you made on the App Store or iTunes Store previously, Yes you can look it up.

You can check this: See your purchase history for the App Store or iTunes Store

You can go to Settings > your Name > Purchase History or Settings > your Name > iTunes & App Store > tap on Apple ID > View Apple ID > login if asked > Purchase History.

No there is not.

I assumed the OP was asking about iphones not apps or music but you may be right

What is NP?