Identifiers.
Yes. 2FA Authenticator • Auth App's developer declares identifiers 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. 2FA Authenticator • Auth App declares 1 data type, so expect the “Allow 2FA Authenticator • Auth App to track your activity across other companies' apps and websites?” prompt.
The data 2FA Authenticator • Auth App uses to track you
Identifiers
An account ID, screen name, customer number or a device-level ID such as the advertising identifier. Identifiers let a service recognise the same person or phone across sessions. Combined with other data, they are what makes cross-app tracking possible.
How to stop 2FA Authenticator • Auth App from tracking you
- When 2FA Authenticator • Auth App 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 2FA Authenticator • Auth App.
- 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 2FA Authenticator • Auth App, look for an analytics or personalised-ads switch in its own settings; it covers data the iOS switch does not.
2FA Authenticator • Auth App's full privacy label
Is 2FA Authenticator • Auth App safe? Every data type explained →
Do other authenticator apps track you?
36% of the 173 authenticator apps with a label in our snapshot declare tracking; 40% say they collect nothing at all. Nearby in the list:
| App | Tracks you? | Data types |
|---|---|---|
| Authenticator App Two Factor | Yes | 5 |
| Codes Authenticator | No | 0 |
| 2F For MicroSoft Authenticator | No | 0 |
| Authenticator App 2FA by Manimau Studios Pte Ltd | No | 4 |
| OTP Auth | No | 0 |
| Authenticator Mobile 2FA | Yes | 4 |
| Rainbow Authenticator | No | 0 |
| Authenticator App 1 | Yes | 2 |
Check your settings
Done. You have applied every control the label points to.
True or false?
- Right.Not quite.
True: it lists identifiers 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: Identifiers 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 2FA Authenticator • Auth App from tracking me?
Will 2FA Authenticator • Auth App 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 2FA Authenticator • Auth App safe? Full privacy report →How to lock 2FA Authenticator • Auth App on iPhone →Who tracks you? A–Z →All productivity apps →