The man is accused of drugging and robbing men he met on the app. He turned himself in but says he is innocent.
The gay dating and hookup app announced merger plans on Monday.
Authorities say the 22-year-old allegedly pulled weapons on his victims and even stabbed one victim in the chest.
As many as 20 queer men were targeted, assaulted, and robbed by the gang using the gay hookup app.
Officials with the gay dating app anticipate additional regulations due to a new law on personal information, so they have withdrawn it from China.
"We discovered exactly what we were told: that they were selling dope. A lot of dope. A lot of street dope on these dating apps."