Check Your Phone's Notification Settings First
The most common reason you stop seeing message notifications is that your phone's notification settings have been changed — either by you, an update, or an app. Before troubleshooting the messaging app itself, open your phone's main Settings app and look for Notifications or Apps. Find your messaging app in the list and check that notifications are turned on. On iPhone, go to Settings > Notifications and scroll to find Messages. On Android, go to Settings > Apps > Notifications (or Apps & Notifications, depending on your phone's version) and find your messaging app there.
Once you find the app, make sure the toggle next to "Allow notifications" is switched on. You should also check that the notification style is not set to "Silent" or "Banners only" — if it is set to "None," you will not see any alerts. Some phones also have a "Do Not Disturb" or "Focus" mode that silences notifications during certain hours or when you are using specific apps. Check whether one of these modes is active and whether your messaging app is excluded from it.
Key Takeaways
- Your phone's system settings override the app's settings, so check Notifications in your phone's main Settings app before looking inside the messaging app itself.
- Do Not Disturb, Focus modes, and battery saver modes can silence notifications even when the app has them turned on.
- Notification badges, sounds, and banners are separate toggles — you may have turned off one without realizing it affects how you see alerts.
- Reinstalling the messaging app or clearing its cache often fixes notifications when settings appear correct but alerts still do not arrive.
Turn Off Do Not Disturb and Focus Modes
Both iPhone and Android have modes that silence all or most notifications, and these modes often stay on longer than you expect. On iPhone, swipe down from the top-right corner to open Control Center and look for Focus (or Do Not Disturb on older iPhones). If it is highlighted in blue or purple, tap it to turn it off. You can also go to Settings > Focus and check which Focus modes are active — some are set to turn on automatically at certain times or when you arrive at certain locations.
On Android, swipe down twice from the top to open the full Quick Settings panel and look for Do Not Disturb or Focus mode. If it is on, tap it to turn it off. Some Android phones also have a "Bedtime mode" or "Sleep mode" that silences notifications — check Settings > Digital Wellbeing or Settings > Display to see if one is active. If you use any of these modes regularly, go into their settings and make sure your messaging app is listed as an exception so notifications come through even when the mode is on.
Check the Messaging App's Own Notification Settings
After your phone's system settings are correct, open the messaging app itself and look for its notification preferences. In most messaging apps, this is under Settings or Preferences inside the app. Look for options like "Notifications," "Sound," "Vibration," or "Message alerts." Make sure notifications are enabled and that you have chosen a notification sound or vibration pattern — if both are set to "None," you may not notice alerts arriving.
Some messaging apps also have a "Notification preview" or "Show message content" setting. If this is turned off, you will still get a notification, but it will not show who the message is from or what it says — just a generic alert. If you have turned this off for privacy, you may have forgotten about it and think notifications are not working. Also check whether the app has a "Mute notifications" option for individual conversations — if you muted a specific chat, you will not get alerts from that person even if notifications are on everywhere else.
Restart the App and Clear Its Cache
Notification problems often fix themselves after you close and reopen the messaging app. Close it completely — on iPhone, swipe up from the bottom of the screen (or swipe down from the top-right on newer models) and swipe up on the app. On Android, swipe up from the bottom and swipe the app away, or open Settings > Apps, find the app, and tap "Force Stop." Wait a few seconds, then open the app again.
If restarting does not work, try clearing the app's cache. On iPhone, go to Settings > General > iPhone Storage, find the messaging app, and tap "Offload App" — this removes the app but keeps your data. Then tap it again to reinstall it. On Android, go to Settings > Apps, find the messaging app, tap Storage, and tap "Clear Cache." This removes temporary files that might be causing notification problems without deleting your messages. If the issue persists after clearing the cache, you can uninstall and reinstall the app completely, though this may require you to sign back in.
Check Battery Saver and Power-Saving Modes
Battery saver, low power mode, and similar features can restrict background activity, which means the messaging app may not check for new messages or send notifications as often. On iPhone, go to Settings > Battery and check whether Low Power Mode is on. On Android, go to Settings > Battery and look for Battery Saver, Power Saving Mode, or Extreme Power Saving Mode. If any of these are active, turn them off to see if notifications return. If you need to keep battery saver on, check whether the messaging app is listed as an exception or priority app that can run in the background even when the mode is active.
Some phones also have an "Adaptive Battery" or "Battery Optimization" feature that learns which apps you use and restricts others to save power. If your messaging app is not one you use constantly, the phone may have put it on a restricted list. Check your phone's battery settings for an option to manage which apps are optimized or restricted, and remove the messaging app from any restriction list.
Verify the App Has Permission to Send Notifications
Your phone's permission system controls whether apps can send notifications at all, separate from whether notifications are turned on in settings. Go to your phone's Settings app and find Permissions, App Permissions, or Privacy (the name varies by phone). Look for Notifications and tap it to see which apps have permission to send alerts. If your messaging app is not listed or is toggled off, tap it and turn permission on.
On some phones, you may need to go into the app's individual settings instead. Open Settings, find Apps or Applications, locate your messaging app, and look for Permissions. Make sure Notifications is allowed. If the permission was recently denied, you may need to restart your phone after turning it back on for the change to take effect.
Update the Messaging App and Your Phone's Software
Notification bugs are often fixed in app updates. Open your phone's app store — the App Store on iPhone or Google Play on Android — and search for your messaging app. If an update is available, install it. You should also check whether your phone itself needs a software update, as these sometimes fix notification problems across all apps. On iPhone, go to Settings > General > Software Update. On Android, go to Settings > About Phone and look for System Update or Software Update.
After updating, restart your phone completely by turning it off and back on. This clears temporary files and ensures the new version is running properly. If notifications still do not arrive after updating both the app and your phone, the problem may be specific to that messaging service — try sending yourself a test message from another device or asking a friend to message you to confirm whether the app is receiving messages at all.
Frequently Asked Questions
Why do I get notifications for some messages but not others?
You may have muted notifications for specific people or group chats. Open the messaging app, find the conversation that is not sending alerts, and look for a mute or notification settings option. You can usually unmute it from there. Also check whether you have turned off notifications for messages from unknown numbers or non-contacts — some apps have this as a separate setting.
I turned notifications back on but still do not see them. What else can I try?
Restart your phone completely by powering it off and back on. If that does not work, uninstall the messaging app and reinstall it from your app store. Before reinstalling, make sure you know your login information so you can sign back in. If notifications still do not work after reinstalling, the problem may be with your phone's notification system itself rather than the app.
Do notifications work differently if I have my phone on silent?
Yes. When your phone is on silent, vibrations and sounds are muted, but visual notifications (banners and badges) usually still appear. If you want sound or vibration alerts, make sure your phone is not on silent mode. Check the physical mute switch on the side of your iPhone, or check your Android phone's volume settings to make sure the ringer volume is not set to zero.
Can my phone's internet connection affect whether I get notifications?
Yes. If your phone is not connected to Wi-Fi or cellular data, the messaging app cannot receive new messages or send notifications. Make sure you have an active internet connection by checking your Wi-Fi or mobile signal. Some apps also need to be able to run in the background to check for messages — if your phone is restricting background activity for the app, notifications may be delayed or not arrive until you open the app.
Why did my notifications stop working after a phone update?
Phone updates sometimes reset notification settings to defaults or change how permissions work. Go back through your phone's notification settings and the messaging app's settings to make sure everything is turned back on. You may also need to update the messaging app itself if a new version is available, as app developers often release updates to fix compatibility issues with new phone software.