In iOS 12, Apple added several new ways for users to control how and when they receive app notifications, including the ability to group notifications and change their behavior on the fly with Instant Tuning. A lesser known feature in this subset of options is called Critical Alerts. So what are they exactly?

criticalalert1
The idea behind Critical Alerts is that if specific apps have crucial information that shouldn't be ignored – notifications related to health, home security, or public safety, for example – then you'll be alerted regardless of your other device settings.

critical alertTo that end, Critical Alerts override the Do Not Disturb feature if you have it enabled on your iPhone or iPad, and will even arrive with an audio alert when your device is muted.

Naturally, the Critical Alerts feature is going to have limited use – you'd only want appropriate apps to have access to it (think glucose monitoring or weather warning apps) which is why Apple requires that developers apply for an entitlement to support them.

For that reason, there aren't a whole lot of apps that support these alerts just yet, but if you do come across one that advertises Critical Alerts, you still get to choose whether to enable them or not. Here's how.

How to Disable or Enable Critical Alerts in iOS 12

  1. Launch the Settings app on your iPhone or iPad.
  2. Tap Notifications.
  3. Select the app from the list that you want to enable/disable Critical Alerts for.
  4. Toggle the Critical Alerts switch on/off.

criticalalerts2

Related Forum: iOS 12

Top Rated Comments

hansenc Avatar
94 months ago
Seriously an app has to apply for the entitlement to support critical alerts??? Turn it off by default and let me decide what is critical and what isn't.
Score: 8 Votes (Like | Disagree)
hortod1 Avatar
94 months ago
But how do I turn off “Presidential Alerts”
Score: 5 Votes (Like | Disagree)
Klae17 Avatar
94 months ago
I would like this for my alarm through SimpliSafe. However, there is no option for it at the moment. If there’s a break in at the office it would be nice. Apple has making it a strict opt-in feauture that needs their approval is a terrible decision. Let the user decide what is and isn’t critical by enabling it for everything.
Score: 4 Votes (Like | Disagree)
jclardy Avatar
94 months ago
Seriously an app has to apply for the entitlement to support critical alerts??? Turn it off by default and let me decide what is critical and what isn't.
I agree, this is a cool feature, but so many apps will never get approval from apple for this feature. Or at least it will take a while to adopt. I’d like to have my security system notifications override DND, but I’ll have to wait for them to support it. Users should have the ability to elevate notifications to this level.
Score: 3 Votes (Like | Disagree)
mikes63737 Avatar
94 months ago
Seriously an app has to apply for the entitlement to support critical alerts??? Turn it off by default and let me decide what is critical and what isn't.
Good, and thank god for Apple doing it this way. I can only imagine the hellscape my life would become if Slack or freemium games could do critical notifications.
Score: 3 Votes (Like | Disagree)
jimjiminyjim Avatar
94 months ago
Now if only this could be applied to government alerts. I got three loud horrific sounding alerts, in the middle of the night, for a missing child. Ok, that's serious. But... it happened 800 miles away, in a different province (state) and they knew that the getaway car was low on gas. If that's how the government is going to hijack my phone to send alerts, please, Apple, put them in their place (I realize they can't actually do this without breaking the law, because it is to do with regulation, I'm just airing my malcontent). They did find the child - apparently whoever stole the car she was in didn't realize anyone was in the back.
Score: 2 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.4 and iOS 27 Features Revealed in New Leak

Friday December 12, 2025 10:56 am PST by
Macworld's Filipe Espósito today revealed a handful of features that Apple is allegedly planning for iOS 26.4, iOS 27, and even iOS 28. The report said the features are referenced within the code for a leaked internal build of iOS 26 that is not meant to be seen by the public. However, it appears that Espósito and/or his sources managed to gain access to it, providing us with a sneak peek...
apple beta 26 lineup

Apple Leak Confirms Work on Foldable iPhone, AirTag 2, and Dozens More Devices

Monday December 15, 2025 2:05 pm PST by
Last week, details about unreleased Apple devices and future iOS features were shared by Macworld. This week, we learned where the information came from, plus we have more findings from the leak. As it turns out, an Apple prototype device running an early build of iOS 26 was sold, and the person who bought it shared the software. The OS has a version number of 23A5234w, and the first...
Apple Logo Top Half

Early iOS 26 Software Leak Uncovers Dozens of Upcoming Apple Features

Monday December 15, 2025 3:05 pm PST by
Software from an iPhone prototype running an early build of iOS 26 leaked last week, giving us a glimpse at future Apple devices and iOS features. We recapped device codenames in our prior article, and now we have a list of some of the most notable feature flags that were found in the software code. In some cases, it's obvious what the feature flags are referring to, while some are more...
Apple Foldable Thumb

Leak Reveals Foldable iPhone Details

Monday December 15, 2025 9:09 am PST by
The first foldable iPhone will feature a series of design and hardware firsts for Apple, according to details shared by the Weibo leaker known as Digital Chat Station. According to a new post, via machine translation, Apple is developing what the leaker describes as a "wide foldable" device, a term used to refer to a horizontally oriented, book-style foldable with a large internal display....
iOS 26

Apple Releases iOS 26.2 With Alarms for Reminders, Lock Screen Changes, Enhanced Safety Alerts and More

Friday December 12, 2025 10:10 am PST by
Apple today released iOS 26.2, the second major update to the iOS 26 operating system that came out in September, iOS 26.2 comes a little over a month after iOS 26.1 launched. ‌iOS 26‌.2 is compatible with the ‌iPhone‌ 11 series and later, as well as the second-generation ‌iPhone‌ SE. The new software can be downloaded on eligible iPhones over-the-air by going to Settings >...
iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
macOS Tahoe 26 Thumb

Apple Releases macOS Tahoe 26.2 With Edge Light

Friday December 12, 2025 10:08 am PST by
Apple today released macOS Tahoe 26.2, the second major update to the macOS Tahoe operating system that came out in September. macOS Tahoe 26.2 comes five weeks after Apple released macOS Tahoe 26.1. Mac users can download the macOS Tahoe update by using the Software Update section of System Settings. macOS Tahoe 26.2 includes Edge Light, a feature that illuminates your face with soft...
airpods max 2024 colors

AirPods Max 2 Likely to Offer These 10 New Features

Monday December 15, 2025 7:41 am PST by
Apple released the AirPods Max on December 15, 2020, meaning the over-ear headphones launched five years ago today. While the AirPods Max were updated with a USB-C port and new color options last year, followed by support for lossless audio and ultra-low latency audio this year, the headphones lack some of the features that have been introduced for newer generations of the regular AirPods and the ...