How to see your purchase history with the price you paid
Most people will probably know you can view your purchase history from the App Store app but this just tells you when you downloaded it and gives you the chance to download it again.
If you want to see how much you paid for it as well as the rating and review you might have given it then this information is also available but deep inside a rather unusual location – the Apple Music app.
In Apple Music go to For You and click your account photo top right. Scroll to the bottom and click View Apple ID then click Purchase History.
You can also have any receipt resent to you from here.