What's the difference between Tencent Weibo and QQ space chat?

Hello, Tencent Weibo is a bigger space than QQ. You may not know it on Tencent Weibo, but you can express your feelings at will. QQ space is the interaction of a friend. If you want to express your feelings without being discovered by your friends, you can post them on Tencent Weibo. Yes, Tencent Weibo has this function, but space talk can also synchronize to Weibo and Weibo. Synchronized with the space is displayed in the template of talk. I hope it can be adopted. Thank you.