For a free app downloaded from the app store, whether there is a receipt as soon as the app is opened.

I'm developing an preOrder reward feature.For a free app downloaded from the app store, whether there is a receipt as soon as the app is opened.

When the player makes an appointment to download the app officially, the reward will be issued.

I want to know Can I get a receipt，If I can't ,so refresh the receipt ,it will pop the Apple ID login alert,This's unfriendly.