如果我将cloudkit用作应用内购买的远程服务器怎么办？ Apple Inc.施加的任何限制？

What if I use CloudKit as a remote server in lieu of my own server for In-app Purchase? Any limitations imposed by Apple Inc.? In order to improve the security I would like to use my own server for In-app purchase development but I found Cloudkit would be one of good candidates doing this.What if I use CloudKit as a remote server in li