Usage data.
Yes. Sleep Time+ Cycle Alarm Clock's developer declares usage data as data used to track you — data that can be combined with other companies' data for targeted ads or ad measurement, or shared with data brokers. On iPhone you can refuse: tap Ask App Not to Track, or switch off tracking requests for every app in Settings.
What “tracking” means on an iPhone
Apple defines tracking as linking data from this app with data from other companies' apps, websites or offline sources for targeted advertising or ad measurement, or sharing it with a data broker. It is narrower than “collecting data”: an app can collect a lot without tracking you, and a small app can track you with a single advertising SDK.
Since iOS 14.5, App Tracking Transparency requires every app to ask before it accesses your device's advertising identifier or otherwise tracks you. The App Store label is where the developer declares which of its data is used that way. Sleep Time+ Cycle Alarm Clock declares 1 data type, so expect the “Allow Sleep Time+ Cycle Alarm Clock to track your activity across other companies' apps and websites?” prompt.
The data Sleep Time+ Cycle Alarm Clock uses to track you
Usage Data
What you tap, open and view inside the app, plus which ads you have seen. Product analytics show developers which features are used. The same records can also feed advertising when an app declares tracking.
How to stop Sleep Time+ Cycle Alarm Clock from tracking you
- When Sleep Time+ Cycle Alarm Clock shows the tracking prompt, tap Ask App Not to Track.
- Already said yes? Open Settings › Privacy & Security › Tracking and switch off the toggle next to Sleep Time+ Cycle Alarm Clock.
- To refuse every app in one go, switch off Allow Apps to Request to Track on the same screen. Apps then cannot ask, and are treated as if you declined.
- For Apple's own ads in the App Store, News and Stocks, see Settings › Privacy & Security › Apple Advertising and turn off Personalised Ads.
- Inside Sleep Time+ Cycle Alarm Clock, look for an analytics or personalised-ads switch in its own settings; it covers data the iOS switch does not.
Sleep Time+ Cycle Alarm Clock's full privacy label
Is Sleep Time+ Cycle Alarm Clock safe? Every data type explained →
Do other health trackers track you?
59% of the 180 health trackers with a label in our snapshot declare tracking; 3% say they collect nothing at all. Nearby in the list:
| App | Tracks you? | Data types |
|---|---|---|
| Somatica | No | 6 |
| Femometer Fertility Tracker | Yes | 7 |
| Heart Mate | Yes | 3 |
| MacrosFirst | Yes | 6 |
| juli | No | 6 |
| iCardiac | Yes | 5 |
| Today Habit tracker | No | 5 |
| WHOOP | No | 9 |
Check your settings
Done. You have applied every control the label points to.
True or false?
- Right.Not quite.
True: it lists usage data under Data Used to Track You.
- Right.Not quite.
Labels are self-reported by developers. Apple can reject or remove apps that misrepresent practices, but it does not audit each label.
- Right.Not quite.
True: Health & Fitness appears on its label.
- Right.Not quite.
It is collected and sent; the developer says it is de-identified rather than tied to your account or device.
FAQ
How do I stop Sleep Time+ Cycle Alarm Clock from tracking me?
Will Sleep Time+ Cycle Alarm Clock still work if I decline tracking?
What is the difference between tracking and data linked to me?
Does declining tracking stop all data collection?
Can apps track me without asking?
Is Sleep Time+ Cycle Alarm Clock safe? Full privacy report →How to lock Sleep Time+ Cycle Alarm Clock on iPhone →Who tracks you? A–Z →All health & fitness apps →