https://blog.wongcw.com/2018/12/22/sensor-tower%ef%bc%9a2018%e5%b9%b4%e8%98%8b%e6%9e%9capp-store%e6%9c%89164%e5%80%8b%e9%96%8b%e7%99%bc%e8%80%85%e8%b3%ba%e5%88%b0%e9%a6%96%e5%80%8b%e7%99%be%e8%90%ac%e7%be%8e%e9%87%91/