If you’d like to send push notifications to your iOS users, you will need to upload either an APNs Push Certificate and an APNs Auth Key.
We recommend that you create and upload an APNs Auth Key for the following reasons:
1. To get your IOS APNs authentication key you need to first login to your Apple Developer account.
2. Click on Certificates, Identifiers & Profiles.
3. Select Key and Add a new Key.
4. Enter Key name and make APNs is checked.
5. Finally, Register your Key.
6. You need to download the key and share it with convertron.