We make Mornio. So take our opinion for what it is, and check the receipts. Every competitor fact below is taken from that app’s own App Store listing or documentation, checked on 21 July 2026, and linked at the bottom of this page. We say plainly where other apps beat Mornio, because a comparison you can’t trust is worth nothing to you.
Short answer
Some do. As of 21 July 2026, Alarmy declares Location, Identifiers and Usage Data under Data Used to Track You; SuperAlarm and Spin Alarm Clock declare Location too; Erly declares Identifiers and Usage Data; Sleep Cycle declares Identifiers.
Mornio, Nuj, Alarm Scan, Kiwake and Apple's Clock declare nothing in that section. These are developer declarations to Apple, not audits.
What an alarm actually needs
An alarm needs a time. Most of the rest is somebody else’s business model. Scan to stop. Then it checks you stayed up. Three completed wake-ups are free, then Pro.
Alarm apps sit in an unusually intimate position. They know when you sleep, when you wake, how often you fail, and with a scan alarm something about your home. Very little of that needs to leave the phone, yet this category varies more than almost any other.
What “tracking” actually means
Apple's definition is specific: Data Used to Track You means data linked with third-party data for advertising, or shared with a data broker. It is narrower than “collects data”.
That means an app can collect a great deal and still declare no tracking, and it also means a declaration under that heading is meaningful. It is not a vague privacy vibe, it is a specific statement about advertising and brokers.
What each app declares
App Store privacy labels for iPhone alarm apps, checked 21 July 2026.
App
Data used to track you
Account needed
Apple Clock
None, part of iOS
No
Mornio
None declared
No, none at all
Nuj
None declared
Payment details required
Alarm Scan
None declared
Not stated
Kiwake
None declared
Not stated
Wayk
None declared
Not stated
Sleep Cycle
Identifiers
Not stated
Erly
Identifiers, Usage Data
Not stated
SuperAlarm
Location, Identifiers, Usage Data
Not stated
Spin Alarm Clock
Location, Identifiers, Usage, Diagnostics
Not stated
Alarmy
Location, Identifiers, Usage Data
Not stated
These are each developer's own declarations to Apple rather than independent audits, and they change between versions. Check the live listing before deciding.
Why an alarm clock wants your location
This is the question people ask when they first read these labels, and the answer is usually straightforward: advertising.
An alarm needs a time, not a place. When Location appears under tracking alongside Third-Party Advertising as a stated purpose, as it does for Alarmy, the location is serving the advertising rather than the alarm. Alarmy's listing also carries Apple's “Contains Advertising” note, which fits.
There are legitimate uses too. SuperAlarm offers a voice briefing of time and weather, which genuinely needs approximate location. The distinction is between using location for a feature and linking it to third-party data for ads, and the label tells you which is declared.
The apps that declare nothing, in context
Mornio declares nothing under tracking and has no account, so there is no identity to link anything to. Alarms, history and registered codes stay on the device.
Nuj declares no tracking, but necessarily handles financial info, contact info and a user ID linked to you, because it charges penalties. No tracking is not the same as no data.
Kiwake declares no tracking, though its listing shows no published update since April 2021, which is its own kind of risk.
Wayk declares no tracking but lists developer advertising or marketing as a purpose for usage data, which is a lighter category than third-party tracking.
How to check any app yourself
Open the App Store listing and scroll to App Privacy.
Read Data Used to Track You first. That is the section that matters most.
Tap See Details for the breakdown by purpose. Watch for Third-Party Advertising.
Check the age-rating information for “Contains Advertising”.
After installing, look at Settings → Privacy & Security → App Privacy Report to see what it actually does.
Re-check after major updates, and especially after a change of developer.
Does it matter?
Genuinely, that is your call, and we are not going to pretend an alarm app knowing your identifier is a scandal. But it is worth knowing what you are trading, because the trade is usually invisible: a free app funded by advertising is a real service and someone is paying for it.
If tracking bothers you, Apple's Clock costs nothing and collects nothing. If you need a mission and a follow-up check as well, that narrows the field considerably, which is covered in our private alarm apps guide.
No account, nothing to track
Alarms, history and codes stay on your iPhone. No sign-up, no server, no ads.
Some do. As of 21 July 2026, Alarmy declares Location, Identifiers and Usage Data under Data Used to Track You; SuperAlarm and Spin Alarm Clock also declare Location; Erly declares Identifiers and Usage Data; Sleep Cycle declares Identifiers. Mornio, Nuj, Alarm Scan, Kiwake, Wayk and Apple's Clock declare nothing in that section.
Why does my alarm app want my location?
Usually advertising. An alarm needs a time, not a place. When Location appears under Data Used to Track You alongside Third-Party Advertising as a purpose, as it does for Alarmy, the location is serving the ads rather than the alarm. Some apps have legitimate uses, such as a weather briefing, so check the stated purposes.
What does Data Used to Track You actually mean?
Apple defines it specifically as data linked with third-party data for advertising, or shared with a data broker. It is narrower than collecting data generally, so an app can collect plenty and still declare no tracking. That also makes a declaration in that section meaningful rather than vague.
Which alarm app collects the least?
Apple's built-in Clock, since there is no third-party developer involved. Among third-party apps, Mornio declares nothing under tracking and has no account at all, so there is no identity to link data to. Bear in mind that privacy labels are developer declarations rather than audits, including ours.
Sources
Alarmy - Loud Alarm Clock, Delight Room Co., Ltd. App Store listing (price, ratings, compatibility, mission list and App Privacy labels).
Alarmy’s App Store listing carries Apple’s “Contains Advertising” note in its age-rating information, and its App Privacy section lists Third-Party Advertising as a stated purpose for Location (precise and coarse), Device ID and Advertising Data. Its description also states “Free features: alarm clock, sleep tracker, sleep sounds etc.” and that a 7-day free trial is provided. App Store listing.
Erly: Wake Up Early, Glacier Labs LLC. App Store listing (compatibility, feature description and App Privacy labels).
Nuj Alarm Clock, Snowble Inc. App Store listing (penalty mechanic, compatibility and App Privacy labels).
Sleep Cycle - Tracker & Sounds, Sleep Cycle AB. App Store listing (features, compatibility and App Privacy labels).
SuperAlarm - Loud Alarm Clock, Jiseop Han. App Store listing (mission list, pricing tiers, compatibility and App Privacy labels).
Spin Alarm Clock, j labs. App Store listing (dismissal mechanic, pricing, compatibility and App Privacy labels).
Alarm Scan: Barcode Wake Up, Waseem Gul. App Store listing (scan mission description, pricing and ratings).
Kiwake: smart alarm clock, Kiwake inc. App Store listing (three-step wake-up flow, pricing, compatibility, and the version 3.2.1 update date of 17 April 2021).
Wayk: Alarm Clock to Wake Up, Dialed Labs Inc. App Store listing (mission list, subscription requirement, pricing tiers and App Privacy labels).
Mornio Privacy Policy, on what is stored on your iPhone and what is not stored at all.
App Store details change without notice. Everything above was checked on 21 July 2026 — if you spot something out of date, tell us at support@mornioapp.com and we’ll correct it. Written and published by the Mornio team. Last reviewed 21 July 2026.