You know an app should have alerted you — a delivery, a message, a bank code — but nothing showed. Chances are the app was muted, blocked, or silenced somewhere in Android's settings. The bad news: Android does not keep a list of "notifications you missed." The good news: you can find out why an app was blocked and stop it from happening again. Here is how.
What "blocked" really means
On Android there are a few distinct ways an alert can be suppressed, and they are easy to mix up:
- App notifications off: the whole app is blocked in Settings → Notifications.
- Category/channel muted: the app is allowed, but a specific channel (e.g. "Promotions") is silent.
- Do Not Disturb: alerts are suppressed globally or for non-priority apps.
- Battery optimization / app standby: the OS throttles background activity so the app never sends the alert.
Each has its own fix, and the first step is figuring out which one bit you.
Check which apps are blocked
To see every app whose alerts are turned off:
- Open Settings → Notifications → App notifications.
- You will see a list split into All, Most recent, and often Turned off.
- Tap an app under Turned off and toggle notifications back on.
On Samsung, go to Settings → Notifications → Advanced settings → Show all notifications, then review each app. On Pixel, the Turned off tab in App notifications is the fastest view. Re-enabling an app does not bring back alerts it missed while blocked — it only restores future ones.
Do Not Disturb and priority rules
If the app is allowed but alerts still vanish at certain times, check Do Not Disturb:
- Open Settings → Notifications → Do Not Disturb.
- Review People, Apps, and Alarms exceptions.
- Make sure the app (or its category) is set as a priority exception if you want it to break through.
Some phones also have a "Hide notifications" toggle inside DND that still logs alerts in the shade; others suppress them entirely. Knowing which your phone does tells you whether a missed alert is recoverable from the shade.
Battery optimizers and app standby
This is the sneakiest cause. Android's battery saver and per-app App Standby can stop an app from running in the background, so it never even tries to send a notification. To fix:
- Open Settings → Apps → [app] → Battery.
- Set it to Unrestricted (or "Don't optimize").
OEM skins (Samsung, Xiaomi, OnePlus) add their own "Deep sleeping apps" and "Auto-launch" lists — check those too, because they override stock Android behavior.
There is no blocked-notification log
Here is the hard truth: Android does not keep a record of notifications it blocked or silenced. The built-in Notification History (Android 11+) only logs alerts that were allowed to appear — it never saw the blocked ones, so it cannot show them. If an app was muted for a week, that week is simply gone from the system's perspective.
Keep a real history with Dingpin
The only way to avoid losing blocked-alert blind spots is to capture alerts before they get silenced. Dingpin logs incoming notifications and lets you pin the ones that matter, holding them in a clean list you can search and review anytime. You can even mute a noisy app in Android and still keep its key alerts in Dingpin, so nothing slips through unseen. It works across Pixel, Galaxy, Xiaomi, and other Android 8+ phones, with no account required.
FAQ
Does Android have a list of blocked notifications?
Not directly. Android does not keep a log of alerts that were blocked or silenced — it simply does not show them. You can check which apps are blocked in each app's notification settings, but there is no built-in history of what you missed.
Why did an app stop sending notifications?
Usually the app was muted, set to silent, blocked in settings, put to sleep by a battery optimizer, or caught by Do Not Disturb. Checking the app's notification importance and battery unrestricted setting resolves most cases.
How can I recover a notification I blocked?
You cannot recover an alert that was already blocked — Android never stored it. Going forward, use a tool like Dingpin that logs and pins incoming notifications so nothing is lost, even if you later mute the app.