What Is the iPhone Alarm Sound? Radar, Explained

Seven in the morning, and the same rising three-note figure is climbing out of a phone somewhere near your head. Apple ships it as the default alarm on every iPhone, so a very large number of people hear it before they hear anything else in the day, and a surprising share of them have never learned its name. It is called Radar, and the reasons it works on you are more deliberate than they look.

What the iPhone Alarm Sound Is Called

Radar is the tone already selected when you create a new alarm in the Clock app. Open an alarm, tap Sound, and it is the one with the tick next to it. The list underneath runs to dozens of options, split between the current tones and a Classic section that keeps older iPhone sounds alive.

Where people get tangled is that an iPhone has three separate sound slots and Radar occupies only one. Your alarm tone, your ringtone and your text tone live in different places and default to different audio. Change one and the other two stay exactly where they were.

Why Radar Works on You

Listen to it properly, somewhere other than a bed, and the design becomes easy to hear. Radar opens quietly, climbs a short rising figure, then repeats that figure faster and louder each time until you deal with it. Nothing bangs at the start. The escalation does the work instead, which leaves the sound gentle enough not to jolt you awake in a panic and relentless enough that ignoring it stops being viable after about fifteen seconds.

That slow build explains something else too. Plenty of people report a real stress reaction on hearing Radar in a film, an advert or somebody else’s pocket. You have not been conditioned to fear a noise. You have been conditioned to expect that the noise is about to get worse.

Does the iPhone Alarm Sound on Silent?

Yes. Clock alarms play through the built-in speaker even when Silent mode is on, and Apple states plainly that the ring/silent switch, the Action button and Do Not Disturb have no effect on the alarm sound. A Focus mode will hold your messages back and leave your 6am alarm untouched.

The exception worth knowing is third-party alarm apps, which a Focus mode can silence depending on how they were built. If you have moved your mornings into a sleep-tracking app and started oversleeping, check that first.

Radar Is Not Marimba

Ask someone to hum the iPhone sound and most of them give you Marimba, the wooden-sounding tone that shipped on the original iPhone in 2007. Marimba was a ringtone. It was never an alarm. iOS 7 replaced it as the default ringtone in 2013 with a tone called Opening, and Marimba moved into the Classic list, where a steady stream of people still go and fetch it back.

So the sound of an incoming call, the sound of an incoming message and the sound that ends your sleep are three separate pieces of audio, written at different times for different jobs. Apple’s tri-tone text alert is the middle one, and socially it is by far the most destructive of the three.

How to Change the iPhone Alarm Sound

Open Clock, tap the alarm, tap Sound, and choose. You get the built-in tones, the option to buy one, and the option to pick a song from your library instead. Setting the sound on one alarm changes nothing about the others, which is why anyone who creates a fresh alarm every night keeps landing back on Radar without meaning to.

Two more things are worth knowing on recent versions of iOS. Snooze used to be fixed at nine minutes and can now be set per alarm, anywhere between one and fifteen. And when the redesigned alarm screen in iOS 26 placed Stop and Snooze side by side as equally sized buttons, enough people killed their alarms by accident that Apple turned Stop into a slide gesture in iOS 26.1.

Play the iPhone Alarm Sound

The iPhone alarm sound button on Bleepboard runs the full escalation and downloads free as an MP3. Deployed on a housemate it is a genuinely cruel thing, and an extremely effective one.

You will find it on the notification soundboard with the other tones your reflexes have been trained by. For the far end of the same idea, the Amber Alert tone is what a wake-up sound looks like when nobody involved was trying to be polite about it.