1, in order to collect the customer's information, for the subsequent marketing help.

2. Nowadays, software requires real-name authentication, so some APPs can realize the real-name authentication process by binding the user's cell phone number, which is more convenient for the user.

3, the software provider to collect the user's habits, do big data survey and analysis, in order to provide users with more humanized services and functions.

Expanded Information

Data is one of the hallmarks of the Internet and even the mobile Internet era. It is because of the value, including economic, that big data can bring in the current and future market that some app developers have started to focus on the collection of big data, and the benefits come from there.

Because the collection of geographic location, device identification information, and local cell phone numbers can be used to accurately match and place advertisements for a fixed and stable group of cell phone users, as well as effectively analyze the user's consumption behavior, which is in line with the interests of some advertisers who are eager to make quick profits, and the app developers can get a share of the advertisements as a result.

In fact, leaving aside the illegal APP applications, the current market, including games, life, education, and other types of APP applications are as much as possible to call the collection of users as much as possible permissions, so that the APP developers will be more and more understanding of the user's information, and when it reaches a certain level after the commercial value of the multiplier.

Baidu Encyclopedia - Big Data

Baidu Encyclopedia - User Behavior Analysis