1. Open the App Store application: find the App Store application on the home screen of the iPhone, and then click Open.

2. Enter the App Store account: In the App Store application, click the avatar icon in the upper right corner to enter your App Store account.

3. View purchased items: On the App Store account page, find the "purchased items" option, and then click Enter.

4. View download history: On the "Purchased Items" page, you can see a list of all downloaded applications. If you want to view the download history within a specific time period, you can click the "Last 90 Days" option and select the time period you want to view.