Pink is a social media application software. It is very popular in mainland China, especially among young people. The reasons for Pink are as follows:

1. Diversified functions: Pink provides a wealth of functions, including the publishing and sharing of text, pictures, and videos, as well as special functions such as live broadcasts and short videos. Users can chat with friends through Pink, share life moments, and follow celebrities, big Vs, funny videos and other content.

2. Convenience of social interaction: Pink provides a convenient and fast way of social interaction. Users can interact with friends through likes, comments, forwarding and other operations to enhance the connection and interaction between users.

3. Extensive user group: Pink attracts a large number of users, especially young people. This allows users to find more like-minded people on Pink, expand their social circles, and share similar interests and experiences.

4. Personalized customization: Pink allows users to customize personal information, themes, background music, etc., allowing users to show their own personality and characteristics, increasing the fun of use and personalized experience.

In addition to the above reasons, Pink also provides some other special functions, such as voice chat, mini games, etc., to meet the different needs of users. Overall, Pink's user-friendliness, rich features, and broad user base make it a popular social media application.