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Relying on silent pushes for sync

Your iOS app relies on silent pushes (content-available: 1) to sync data every time the server changes. Users report missed updates. Why?

A.Background pushes are low priority and the system may delay or drop them, and they are not delivered to an app the user force-quit; do not rely on them for guaranteed syncB.Silent pushes are only shown after the user taps themC.Silent pushes are only delivered while the device is on Wi-Fi and charging, so users on mobile data get them hours later and the app misses changesD.Silent pushes need a new permission prompt each time

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Relying on silent pushes for sync

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