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
96 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
96 months ago
But how do I turn off “Presidential Alerts”
Score: 5 Votes (Like | Disagree)
Klae17 Avatar
96 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
96 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)
96 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
96 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

Apple Announces Special Event in New York Feature 1

Apple Reportedly Plans to Unveil at Least Five New Products Next Week

Sunday February 22, 2026 9:48 am PST by
In his Power On newsletter today, Bloomberg's Mark Gurman said Apple will have a three-day stretch of product announcements from Monday, March 2 through Wednesday, March 4. In total, he expects Apple to introduce "at least five products." Subscribe to the MacRumors YouTube channel for more videos. A week ago, Apple invited selected journalists and content creators to an "Apple Experience" in...
tim cook data privacy day

Tim Cook Warned by CIA That China Could Move on Taiwan by 2027

Tuesday February 24, 2026 4:03 am PST by
Apple CEO Tim Cook was among a handful of top tech executives who attended a classified CIA briefing warning that China could attack Taiwan by 2027, according to a sweeping investigative report by The New York Times ($). The previously unreported briefing was apparently held in a secure room in Silicon Valley in July 2023. The meeting is said to have been arranged at the request of the...
iOS 26

iOS 26.3.1 Update for iPhones Coming Soon as 'Apple Experience' Nears

Sunday February 22, 2026 5:29 pm PST by
Apple's software engineers are testing iOS 26.3.1, according to the MacRumors visitor logs, which have been a reliable indicator of upcoming iOS versions. iOS 26.3.1 should be a minor update that fixes bugs and/or security vulnerabilities, and it will likely be released within the next two weeks. Last month, Apple released iOS 26.2.1 with bug fixes and support for the second-generation...