The steps to add friends in the App are as follows:

Tools: mobile phone, Quark Netdisk app.

1. Open the Quark Network Disk App and enter the network disk homepage.

2. Click the "***Share" button on the network disk homepage to enter the ***share interface.

3. Click the plus sign on the *** sharing interface and select the "Add Friends, Groups" option.

4. Click the search box on the add interface, enter your mobile phone number and press Enter to search.

5. Click "Add TA as a friend" in the search results to add friends.

Quark Netdisk is a netdisk service launched by the intelligent search Quark App, covering mobile phones, Web pages, tablets represented by iPad and other multi-terminal carriers. This feature allows users to easily access and share files across different devices.