Language Learning APP Survey

Hi, My team develop a language learning APP, called "SpeakAI". https://speakai.cc At this stage, we mainly focused on learn English for Chinese users. Next, we want to expand to more countries and more languages, so we want to do a survey first. Below is our survey, we would really appreciate it if you would take 1 minute to fill it out. https://wenjuan.feishu.cn/m?t=sp63AywnocNi-53bq