Prompt
Why are push notifications delayed for some users?
Latest observation
Oct 14, 2026
OpenAI APIWeb search: off
Push notifications can be delayed for some users for several common reasons:
- Device power-saving modes: iOS/Android may delay background delivery to save battery.
- Poor or unstable network: If the phone has weak connectivity, the notification may arrive late.
- App state and background restrictions: The app may be restricted from running in the background.
- Push service delays: APNs/FCM can occasionally queue or throttle messages.
- Server-side queuing/backlog: Your backend may be sending notifications slower than expected.
- Timezone / scheduling issues: Notifications may be intentionally scheduled later due to user settings.
- Token problems: Stale or invalid device tokens can cause retries or delivery issues.
- OS-specific behavior: Android and iOS handle priority and background delivery differently.
- Throttling from excessive sends: If a user receives many pushes, platforms may reduce delivery priority.
If you want, I can help you troubleshoot this by narrowing it down based on:
- iOS vs Android,
- your push provider (APNs, FCM, OneSignal, etc.),
- whether the delay is random or tied to certain devices/users.