Check purchase history on iPhone

To check your purchase history on your iPhone, follow these steps:

1. Go to Settings.

2. Select your Account (the one at the top with your name).

3. Tap on Media & Purchases. And then on View account.

4. Tap on Purchas History.

5. All successful purchases will be listed there.

For more details, you can refer to this link from Apple: Check your purchase history.