Almost every alarm ever made shares one assumption: that dismissal means success. The noise stops, the app considers the job done, and the rest of the morning is your problem. For a large number of people that assumption is exactly backwards. Dismissal is the moment of maximum danger, not the finish line.
The gap almost no alarm covers
Sleep inertia does not end when the alarm does. For anywhere from fifteen minutes to over an hour after waking, your alertness and judgement are measurably impaired, and crucially, your judgement about how awake you are is impaired too. This is why “I'll just lie here for a minute” is such a convincing thought at 6:32 and such an obviously terrible one at 7:45.
So the person who gets up, silences the alarm, and sits on the edge of the bed is not safe. They are in the most dangerous five minutes of the morning, holding a device that has stopped paying attention.
An alarm that stops when you dismiss it is trusting the least reliable version of you.
How each app follows up
| Mornio | Alarmy | Nuj | Erly | |
|---|---|---|---|---|
| What the check is | Stay-awake check a few minutes after dismissal | “Wake up check”, make a selection within a time limit | Separate get-up time deadline | Daily accountability check-in |
| What happens if you fail | Protection restarts (the alarm comes back) | Alarm behaviour continues | You are charged your penalty | You lose your streak |
| Included at no cost? | In the 3 free Protected Mornings; then Pro | Premium feature | Free app; the penalty is your money | Free tier plus in-app purchases |
| Timing you control | Yes, you set the delay or turn it off | Not stated | Yes, you set the get-up time | Not stated |
| Minimum iOS | 26.1 | 16.0 | 15.0 | 17.6 |
Descriptions are paraphrased from each developer’s own App Store listing. “Not stated” means the listing does not specify it.
Mornio
Best for: people whose exact failure is dismissing the alarm and relapsing, who want the follow-up to be the point rather than an upsell.
Mornio’s sequence is deliberate. The alarm rings. You pass the Wake Check by scanning your registered code, which requires being out of bed. Then, after a delay you choose, the stay-awake check asks you to confirm you are still up. If you do not respond, protection restarts. The alarm returns and you have to do it again.
There is also a backup alarm a few minutes after the first for extra reliability, and an alarm history that records how each morning actually went: whether you passed the stay-awake check, needed the backup, or used the emergency exit. The history is deliberately honest, an emergency dismissal is never recorded as a success.
Strengths
- The follow-up check is the core product, not a premium add-on
- You set the delay, or turn the check off entirely
- Failing it restarts the alarm, a real consequence with no money involved
- Honest history that does not flatter you
- No account, no ads, no tracking
Limitations
- iOS 26.1 and iPhone only
- Unlimited use of the stay-awake check is a Pro feature after your three free Protected Mornings
- No sleep tracking, no streaks, one mission type
- Small review base, it is a new app
Alarmy - Loud Alarm Clock
Alarmy’s listing describes a premium wake up check that requires you to make a selection within a time limit, so it addresses the same gap. Given Alarmy’s scale, iOS 16 support and the breadth of everything else it does, it is a strong choice if you want one app covering missions, sleep tracking and a post-dismissal check together. The check sits behind its premium tier, and its privacy label declares Location, Identifiers and Usage Data used to track you.
Nuj Alarm Clock
Nuj’s structure is a follow-up check with money attached. The alarm time and the get up time are separate, and the challenge must be completed by the later deadline or you are charged the penalty you chose. That is arguably the strongest post-dismissal mechanism available, because the consequence is external and immediate. It requires payment details, and its privacy label lists financial and contact info linked to you. iOS 15 and later.
Erly: Wake Up Early
Erly’s daily check-in and streak system operate on a longer timescale. The pressure is about not breaking a run, rather than a specific alarm coming back five minutes later. If you are trying to shift your wake-up time over weeks rather than rescue tomorrow, that framing is genuinely more useful than Mornio’s. It runs on iOS 17.6+, macOS and visionOS, and declares Identifiers and Usage Data used to track you.
Choosing your delay
If your app lets you set the follow-up timing, this is worth thinking about for thirty seconds:
- 3–5 minutes catches the classic relapse: you got up, sat down, and drifted. Best if you are the sit-on-the-edge-of-the-bed type.
- 8–10 minutes catches the subtler one: you got up, moved around, and then went back to bed “just for a second.” This is the default we would suggest for most people.
- 15+ minutes is for people who reliably stay up but want confirmation before the point of no return, such as before a commute.
If you keep passing the check without noticing it, that is the system working. Lengthen the delay or turn it off. A check you resent is a check you will disable on the wrong night.
A note on what these apps cannot do
None of these apps can detect that you are asleep. They detect that you did not respond, which is a proxy, a good one, but a proxy. You can defeat any of them by responding and then going back to bed, and no app will save someone who is severely sleep-deprived. If you consistently oversleep despite spending enough time in bed, an app is treating a symptom; that is worth raising with a doctor.