Alarm apps sit in an unusually intimate position. They know when you sleep, when you wake, how often you fail to, and (with a scan-based alarm) something about the layout of your home. Very little of that needs to leave your phone, and yet the privacy labels in this category vary more than in almost any other.
What the App Store privacy labels say
Every listing has an App Privacy section split into three parts: Data Used to Track You (shared with data brokers or used for advertising across other companies’ apps and websites), Data Linked to You (tied to your identity), and Data Not Linked to You. These are the developer’s own declarations to Apple, not an independent audit, but they are the best standardised comparison available, and misdeclaring carries real consequences.
Here is what these apps declared as of 21 July 2026.
| App | Data used to track you | Account needed | Ads |
|---|---|---|---|
| Apple Clock | None, it is part of iOS | No | None |
| Mornio | None declared | No, no sign-up at all | None |
| Alarm Scan | None declared | Not stated | Yes, $1.49/mo to remove |
| Sleep Cycle | Identifiers | Not stated on listing | Not stated |
| Erly | Identifiers, Usage Data | Not stated on listing | Not stated |
| Alarmy | Location, Identifiers, Usage Data | Not stated on listing | Not stated |
| Nuj | None declared | Payment details required | Not stated |
Labels are developer declarations and change between versions. Check the live listing before deciding. We link every one in the sources below.
Reading between the lines
A few things worth understanding rather than just scanning:
“Tracking” has a specific meaning. It means linking your data to third-party data for advertising, or sharing it with data brokers. An app can collect a lot and still declare no tracking. Alarmy’s declaration of Location under tracking is the one that surprises people most in this category, an alarm clock has no obvious need for it.
Nuj is a special case. Its privacy label lists financial info, contact info and a user ID linked to you, but that follows unavoidably from what it does. You cannot charge someone a penalty without payment details. That is a fair trade if you want the mechanism; it is simply not compatible with wanting an anonymous alarm.
Sleep tracking changes the calculus. Sleep Cycle’s label lists Health & Fitness data, coarse location, contact info and identifiers linked to you. For an app analysing your sleep, some of that is inherent. If you do not want sleep analysis, you are accepting that collection for nothing.
Free apps have to make money somewhere. Ads, subscriptions or data. Alarm Scan is transparent about being ad-supported with a $1.49/month removal. That is a legitimate model, just know which one you are choosing.
Apple Clock
No account, no third-party developer, no data leaving the device for alarm purposes. In iOS 26 it also gained the custom 1–15 minute snooze duration. If your requirements are “wake me up” and “tell nobody,” you are finished, this is the answer and it is free.
Its limitation is the same as always: no verification, no follow-up check, and a swipe ends it.
Mornio
Best for: people who want a mission-based alarm with a follow-up check but refuse to create an account or be tracked.
The design rule was that Mornio should not know who you are, and it does not. There is no sign-up, no email, no password. Your alarms and history live in the app’s private storage on your iPhone. There is no Mornio server they sync to.
The code you register deserves specific mention, because it is the part people ask about. Mornio does not store a photo of your QR code or barcode, and it does not store the readable value. It stores a salted one-way hash plus a label you choose, like “bathroom mirror.” That is enough to recognise the right code when you scan it, and not enough to reconstruct what the code was.
Purchases go through Apple, so restoring Pro on a new iPhone works via your Apple Account, no Mornio account involved. Full detail is in our Privacy Policy.
Strengths
- No account, ever, not optional, just absent
- Nothing declared under Data Used to Track You
- Codes stored as a one-way hash, never as an image or readable value
- No ads and no third-party ad SDK
- Three free Protected Mornings without a card
Limitations
- No account means no cloud backup, lose the phone, lose the history
- No sync between devices
- iOS 26.1 and iPhone only
- You are trusting our description of on-device behaviour; the privacy label and policy are what we can show you
Alarm Scan: Barcode Wake Up
Its privacy label declares only Usage Data and Diagnostics, not linked to you, and nothing under tracking, a clean posture. It is a barcode and QR scan alarm with backup alarms, on iOS 26.0+. The caveats are that it is ad-supported ($1.49/month to remove) and had a single rating when we checked, so it is unproven for something as consequential as an alarm. Test it on a low-stakes morning.
How to check any app yourself
- Open the App Store listing and scroll to App Privacy. Read Data Used to Track You first, because it is the one that matters most.
- Tap See Details for the full breakdown by purpose. “Third-Party Advertising” is the line to watch.
- Check whether the app makes you sign up. If it does, ask what an alarm needs an account for. Sometimes there is a good answer, sync, or a genuine web component. Often there is not.
- After installing, look at Settings → Privacy & Security → Tracking and App Privacy Report to see what it is actually doing.
- Re-check after major updates. Labels change, and a change of owner can change everything.
The trade-off nobody mentions
Choosing a no-account app has a genuine cost, and we would rather say it than have you discover it: there is no backup. If you lose your iPhone, Mornio’s alarm history goes with it. If you want your wake-up data to follow you across devices and survive a lost phone, an app with an account genuinely serves you better, and that is a legitimate reason to choose one.
We made the opposite trade because an alarm clock is not a document you need to keep for years. But it is a trade, not a free win.