Custom sound for iOS Push Notifications

I know that this question was answered here:

But I am curious, after detaching, what does one have to do in order to implement a custom sound file? Can we still build the overall app using Expo–or does detaching mean we have to build it using a Mac/Xcode?

And what kind of push notification services exist? I thought all push notifications for iOS use APNS? Why would we have to use our own?

hi @mattr, once you detach, you need to handle push notifications and also building your binary. “use your own push notification” means you have a server that talks to APNS. Push notification services include onesignal and urban airship.

Thanks for the response, quinlanj.

Does “building your binary” mean you need XCode/Mac? Or can you still use Expo to bypass that requirement by Apple?

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