YY is a multi-play voice chat software. Many online guilds and game families are engaged in it, and they can only communicate with each other through words and sounds. QQ is more powerful than YY, but many people can't communicate with each other through voice. YY can entertain hundreds or even thousands of people simultaneously. In fact, if you really want a family or guild, YY and QQ are inseparable. The biggest difference is that QQ is individual-centered, emphasizing self-presentation, and personal number is highly valued; YY takes the team as the core, emphasizing that group and individual numbers are insignificant, and channel numbers are more valuable. For QQ, the group is affiliated, while for YY, the channel is almost everything. Comparatively speaking, YY is more suitable for the development of the forum, allowing like-minded people to communicate together through molecular channels or participate in promotion. QQ group is too difficult to use in this respect. Generally, it is blocked in the group, and you can't always look at information that has nothing to do with yourself.