“Heavy sleeper” usually gets treated as a volume problem. Buy the loudest alarm, the theory goes, and the problem solves itself. But most people reading this already own an iPhone that can produce a genuinely startling noise at 6 a.m., and they still oversleep. Volume was never the bottleneck.
The real bottleneck is that dismissing an alarm takes almost no wakefulness. Your hand knows where the phone is. Your thumb knows where the button is. You can complete the whole transaction in a state that leaves no memory behind, which is why so many people swear they never heard it.
So the useful question is not “which alarm is loudest?” It is: which alarm is hardest to switch off without genuinely waking up, and which one notices if you fail? That is what this guide ranks on.
How we judged these apps
Five criteria, in the order that actually predicts whether you get up:
- Can you dismiss it half-asleep? A tap, a swipe, or a puzzle you can pattern-match while unconscious all fail this test. Physically leaving the bed passes it.
- Does anything happen after you dismiss it? This is the step almost every alarm app skips. Getting up for eleven seconds and going back to bed is the most common way people oversleep.
- Will it definitely ring? An alarm that a Focus mode or a silent switch can mute is not an alarm.
- What does it cost, and what does it take from you? Price, ads, accounts, tracking.
- What does it require? Minimum iOS version, since this rules some apps in or out immediately.
Everything factual below (prices, iOS requirements, privacy labels, mission types) comes from each app’s own App Store listing, checked on 21 July 2026 and linked in the sources.
At a glance
| Mornio | Alarmy | Erly | Nuj | Apple Clock | |
|---|---|---|---|---|---|
| Get-out-of-bed mission | QR / barcode scan | Math, memory, shake, squats, photo, QR, voice | Missions to dismiss | Barcode scan or step count | None |
| Checks again after you dismiss | Yes, stay-awake check, then restarts | Yes, “wake up check” (premium) | Daily check-in | Yes, via get-up deadline | No |
| Minimum iOS | 26.1 | 16.0 | 17.6 | 15.0 | Built in |
| Account required | No | Not stated on listing | Not stated on listing | Payment details needed for penalties | No |
| Listed as tracking you | No | Location, Identifiers, Usage Data | Identifiers, Usage Data | Not listed as tracking | No |
| Sleep tracking & sounds | No | Yes | No | No | Basic Sleep Focus |
| Price | Free tier; Pro $7.99/mo or $29.99/yr | Free with in-app purchases | Free with in-app purchases | Free; you set your own penalty | Free |
“Listed as tracking you” reflects the Data Used to Track You section of each app’s App Store privacy label. It is the developer’s own declaration, not our assessment.
1. Mornio: best for the dismiss-then-relapse problem
Mornio
Best for: people whose actual failure mode is turning the alarm off and going back to sleep, who want a focused alarm with no account and no tracking.
Mornio does two things and does not pretend to do more. First, the Wake Check: you register a QR code or an ordinary household barcode: a toothpaste tube, a cereal box, a printed code taped to the bathroom mirror, and that exact code is the only thing that dismisses the alarm. Not a different barcode. Not a tap. You have to stand up and walk to it.
Second, and this is the part that distinguishes it: a few minutes after you scan, Mornio checks again. If you do not respond to that stay-awake check, protection restarts and the alarm comes back. Getting out of bed is treated as the beginning of the morning, not the end of the alarm’s job.
The alarm itself is built on Apple’s AlarmKit, the iOS 26 framework that lets a third-party app schedule a real system alarm, one that sounds through Silent mode and Focus and appears on the Lock Screen. That is also the source of Mornio’s biggest limitation, below.
Strengths
- The follow-up check is the whole point, not a premium extra bolted on
- No account, no sign-up, no Mornio server, alarms and codes stay on your iPhone
- Registered codes are stored as a one-way hash and a label you choose, never as a photo or readable value
- No ads, and nothing in the privacy label under Data Used to Track You
- Three free Protected Mornings with no card, so you can test it before paying
- Emergency dismissal always exists, and is recorded in your history rather than hidden
Limitations worth reading
- Requires iOS 26.1. If your iPhone cannot run it, Mornio is simply not an option and Alarmy or Nuj will reach you where Mornio cannot
- iPhone only, no Android, no standalone Apple Watch app
- One mission type. If scanning does not suit you, there is no maths, typing, photo or squat alternative
- No sleep tracking, no snore detection, no sleep sounds
- You cannot choose a custom alarm tone. It uses the system alarm sound, because in our own testing custom tones stopped after a few seconds while the system tone keeps ringing
- A new app with a small review history compared to Alarmy’s decade of feedback
2. Alarmy: best if you want variety and sleep tracking
Alarmy - Loud Alarm Clock
Best for: people who want to choose between many mission types, want sleep tracking and sleep sounds in the same app, or are on an older iPhone.
Alarmy is the established heavyweight in this category and it earns that position. Its App Store listing describes missions including solving maths, memory games, shaking the phone, squats, a Photo Mission where you photograph a specific place in your home, QR codes and voice. If you want to rotate between challenges, or you know that one particular type works on you, Alarmy has the deepest set by a wide margin.
It also bundles a sleep tracker and calm sleep sounds, and its listing describes a premium “wake up check” that requires a selection within a time limit. So it is not accurate to say Alarmy ignores what happens after dismissal. It does not. With roughly 240,000 US ratings at 4.8 stars, it also has a track record no new app can claim.
Where Alarmy beats Mornio
- Runs on iOS 16 and later, vastly more iPhones
- Far more mission types, including a photo mission Mornio has no equivalent for
- Sleep tracking and sleep sounds built in
- A decade of iteration and an enormous review base
- Also available on iPad
Trade-offs
- Its privacy label declares Location, Identifiers and Usage Data used to track you across apps and websites owned by other companies
- A large, feature-dense app, 233 MB, and a lot of surface area if all you want is an alarm
- The in-app purchase list is long and the tiers are hard to compare at a glance
3. Erly: best if streaks motivate you
Erly: Wake Up Early
Best for: people who respond to streaks, progress and daily accountability, and who want to shift their wake-up time earlier, not just survive one morning.
Erly frames waking up as a habit to build rather than an event to survive. Its listing describes missions to dismiss the alarm, streak tracking and history, a daily accountability check-in, locked deadlines and a gamified progress system. If you are the kind of person who will not break a 40-day streak, that is a genuinely different and effective lever, and one Mornio deliberately does not pull.
Two practical notes. It supports iOS 17.6 and later, so it reaches iPhones Mornio cannot. And its privacy label declares Identifiers and Usage Data used to track you, which matters if tracking is a dealbreaker for you.
Where Erly beats Mornio
- Runs on iOS 17.6+, plus macOS and visionOS
- Streaks, achievements and accountability structure that Mornio has none of
- Aimed at shifting your wake time earlier over weeks, not just protecting one morning
Trade-offs
- Declares Identifiers and Usage Data used to track you
- Gamification is a matter of taste, for some people a streak is pressure, not motivation
- A recurring theme in its public reviews is frustration at hitting a paywall after a long setup flow
4. Nuj: best if only money will move you
Nuj Alarm Clock
Best for: people who have tried everything and genuinely need a financial consequence.
Nuj’s subtitle is “Wake Up. Get Up. Or Pay Up!” and it means it. You set an alarm time, a separate get up time, a challenge (scanning a barcode, or a step count) and a penalty amount. Fail to complete the challenge by your get-up time and you are charged. Its listing describes penalties going to charity.
This is a legitimately powerful mechanism, and it deserves respect rather than a cheap dismissal. It is also the only app here whose privacy label lists Financial Info under data linked to you, which follows unavoidably from what it does. It has a small review base (around 81 ratings) so it is far less battle-tested than Alarmy.
Where Nuj beats Mornio
- Runs on iOS 15 and later
- A real, external consequence, the strongest motivator here for some people
- The get-up deadline is a genuine second checkpoint, conceptually similar to Mornio’s stay-awake check
Trade-offs
- Requires payment details, and its privacy label lists financial and contact info linked to you
- Punitive by design, if you have an unpredictable schedule or a bad night, you pay for it
- Small review base compared to the established apps
5. Apple’s built-in Clock: better in iOS 26 than people assume
Apple Clock
Best for: anyone who has not actually tried fixing their setup before paying for an app.
Try this before you spend money. The built-in Clock rings through Silent mode and Focus, and in iOS 26 you can finally set a custom snooze duration from 1 to 15 minutes per alarm instead of being stuck with the old nine. Set snooze to one minute and it becomes far less useful as an escape hatch. Put the phone across the room and you have improvised most of a Wake Check for free.
What it cannot do is verify anything. There is no mission, so a half-asleep swipe ends it, and nothing checks on you afterwards. If that is precisely your failure mode, this is the point where an app earns its money.
The honest summary
If you want the loudest possible arsenal of missions plus sleep tracking, and you are on an older iPhone, install Alarmy. If a streak is what gets you moving, Erly. If you have exhausted every option and need money on the line, Nuj. If you have never tried a one-minute snooze with the phone across the room, do that first and spend nothing.
And if you recognise yourself in this sentence, “I do get up, I turn it off, and then I wake up an hour later with no memory of it” — that is the specific problem Mornio was built for, and the reason it checks again instead of trusting the dismissal.