It's one of my worst interview experiences. The interviewer is very disrespectful, looks contemptuous throughout the interview, questions your ability and interrupts you. And they'll take you as an unpaid tester. If you want to interview this company, be careful! You will get the worst interview experience and waste 1 hour of your life. It's like a company that swindles investors. Its products are very immature and its employees are very unprofessional. Don't waste time on companies that aren't worth it.