iPhone reminders not going off? Check these

If reminders on your iPhone don't show up or make no sound, the cause is usually in iOS settings: notifications turned off for the app, a Focus that blocks it, the app sitting in Scheduled Summary, or silent mode muting the sound. On iOS 26 and later, a reminder app can also ring like an alarm through silent mode and Focus, but only once you allow alarms for it.

The steps use Buzzley as the example; the same settings apply to any reminder app on an iPhone.

Why iPhone reminders get missed

An iPhone doesn't stop reminder apps in the background the way many Android phones do. The problems are about how a notification is delivered once it's due:

• Notifications off, or allowed but hidden from the lock screen and banners.
• A Focus (Do Not Disturb, Sleep, Work and so on) that doesn't allow the app.
• Scheduled Summary, which collects an app's notifications and delivers them later in a batch.
• Silent mode, which mutes the sound of ordinary notifications.

How to fix it on an iPhone

1. Allow notifications

Open Settings > Notifications > Buzzley. Turn on Allow Notifications, then make sure Lock Screen, Notification Center and Banners are selected and Sounds is on.

2. Take the app out of Scheduled Summary

If you use Scheduled Summary, open Settings > Notifications > Scheduled Summary and make sure Buzzley is not in it. On Buzzley's own notification page, choose Immediate Delivery. A reminder in a summary arrives at the summary's time, not at its own.

3. Allow the app in your Focus modes

Open Settings > Focus, pick each Focus you use (for example Do Not Disturb, Sleep or Work), tap Apps under allowed notifications and add Buzzley. Repeat for every Focus that might be on when a reminder is due.

4. On iOS 26 and later, allow alarms

From iOS 26, apps can use Apple's alarm system. Buzzley uses it for reminders set to the Alarm style, which then ring through silent mode and Focus like the Clock app's alarms. The first time, iOS asks whether to allow alarms for Buzzley. If you said no, Buzzley shows the check "Alarms can't ring in silent mode", and its Fix button takes you to Buzzley's page in the Settings app, where you can turn alarms on.

5. On older iOS versions, keep the ringer on

Before iOS 26, Buzzley's Alarm style is a burst of ten notifications, 30 seconds apart, about five minutes in all. They're still ordinary notifications, so silent mode mutes their sound and a Focus can hold them back. Keep the ringer on and allow Buzzley in your Focus modes (step 3).

What Buzzley does on an iPhone

Buzzley's Alarm not ringing? screen, in Settings > Full-screen alarms > Alarm not ringing?, checks whether notifications are on ("Notifications are off" when they aren't) and, on iOS 26 and later, whether alarms are allowed. A Fix button opens the right place for each.

Buzzley does not use Apple's critical alerts or Time Sensitive notifications. That's why steps 2 and 3 matter: an ordinary notification follows your Focus and summary settings.

For what each notification style does, see reminders that ring like an alarm. For a step-by-step on silent mode on both platforms, read how to make a reminder ring on silent.

Common questions

Does Low Power Mode stop reminders?

Reminders that are already scheduled are delivered by iOS itself, so they arrive in Low Power Mode too. Syncing changes from your other devices can take longer while it's on.

Can a reminder ring when my iPhone is on silent?

On iOS 26 and later, yes, for reminders in the Alarm style once alarms are allowed for Buzzley. On older versions, silent mode mutes reminder sounds.

Why do location reminders not arrive?

Location reminders need Always location access and Precise Location. The location reminders guide has the details.

How does this compare with Apple Reminders?

Apple's own app has its own alarm option on recent iOS versions. See Buzzley vs Apple Reminders for where each one fits.