China Naming Network - Ziwei Dou Shu - Which is more expensive, classin or Nail?
Which is more expensive, classin or Nail?
Classin is very expensive.
1, ClassIn was born for online classes, classin is expensive, and the time is much earlier than that of Nail and Tencent, which only joined in recent years.
2, and nailing is a free platform, which is excellent in small class interaction, audio and video, and document collaboration.