https://blog.wongcw.com/2022/05/17/%e8%98%8b%e6%9e%9c%e7%8f%be%e5%9c%a8%e5%85%81%e8%a8%b1%e9%96%8b%e7%99%bc%e8%80%85%e5%9c%a8%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f%e8%a8%82%e9%96%b1%e5%83%b9%e6%a0%bc%e4%b8%8a%e6%bc%b2%e6%99%82%e8%87%aa/
蘋果現在允許開發者在應用程序訂閱價格上漲時自動收費