You can find the order history for your Apple account as follows:

1. [On your iPhone or iPad]
Step 1: Open the App Store app.
Step 2: Tap the sign-in button or your photo at the top of the screen.
Step 3: Tap Purchase History to view your purchases. (※ You might be asked to sign in.)

2. [On your Mac]
Step 1: Open the App Store app.
Step 2: Click your name at the bottom of the sidebar.
Step 3: Click Account Settings. (※ You might be asked to sign in.)
Step 4: Scroll down to Purchase History on the Account Information page. Next to the most recent purchase, click "See All" to view your order history.

▸  For more details about how to find the order history, you can visit Apple Support.