1. Turn on the setting function of iphone and Apple phones. Open iphone settings and drop down to view privacy settings. Open the first icon location service in privacy settings. Open the location service and pull it to the end.

2. First, turn on the phone and enter the main interface of the Apple phone. Then quickly press the "Home button" on the bottom of the Apple phone twice to open the multitasking management interface of the Apple phone. After that, the previously opened iOS apps will appear on the interface, and all the open apps can be displayed by swiping left and right.

3. Click the Safari icon on the desktop of Apple's mobile phone to enter, as shown below: Enter the main interface of Safari browser, click the left arrow at the bottom left to display the online history. If you want to visit one of the websites again, just click on it.

4. To view the traces of deleted apps on the iPhone, you need to open the AppStore and log in to your account. Then, click "Account" and a window will pop up with a "Purchase History" button. You can click to view the usage traces of the deleted application.