I developed an application for Android and iOS to communicate with FMS. Since my application is in mobile and not on website, how to communicate with the server without being rejected. (allowed domains)
Because iOS devices do not work with FMS, only Android, the only way you will get your app to play is by using http live streaming, which is available in FMS 4.5. We only offer FMS 4.5 with our Dedicated Servers.
If you have further questions, we can help you better if you send an email to firstname.lastname@example.org so we can take a look at your app, and see what we can do to help you further.