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Is Authenticator App Safe?

Authenticator App privacy label · by UNSTABLE, SL · checked November 2026

  • Nothing linked to you
  • Recently updated
App Privacy label Developer-reported · checked November 1, 2026
Used to track you
0types

None declared

Linked to you
0types

None declared

Not linked to you
4types
Short answer

On the label it is low-risk: Authenticator App collects some data but says none of it is linked to you or used for tracking. The sensitive items are user content. In total the label lists 4 data types; 36% of authenticator apps we checked declare tracking.

At a glance

Authenticator App privacy in one look

Data exposure on the label
Not linked to you
  1. 1
  2. 2
  3. 3
  4. 4

Built only from the developer's App Store label. It describes disclosure, not tested behaviour.

Verdict from the label
Not linked to you

Authenticator App collects some data but says none of it is linked to your identity, and none is used for tracking.

Try it

Did Authenticator App ask for something?

Pick the permission prompt you saw. We compare it with what Authenticator App's developer declared.

It asked me for access to…
Tap a prompt to compare it with the label.
Not on the label

Location is not on Authenticator App's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

Matches the label

Authenticator App lists User Content on its label. Choose Limited Access and pick only the photos you want to share.

Not on the label

Contacts is not on Authenticator App's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

Not declared on the label

Authenticator App declares no tracking, so a tracking prompt would contradict its label. Decline it, and consider reporting the mismatch to Apple.

Not on the label

Health & Fitness is not on Authenticator App's label. That can be fine: data used only on your iPhone does not have to be declared. If the data would need to leave the phone for the feature to work, ask why it is missing.

A permission is what the app can reach on your iPhone; the label is what the developer says leaves it. They answer different questions.

Line by line

What Authenticator App collects, explained

Data typeWhat it coversWhere to limit it
User ContentSensitiveNot linked to you Messages, photos, videos, audio recordings, documents and support chats you create or upload. Settings › Privacy & Security › Photos: choose Limited Access or None; review Microphone and Files access too.
PurchasesNot linked to you What you have bought or tend to buy. Review in-app marketing settings; subscriptions are listed in Settings › [your name] › Subscriptions.
Usage DataNot linked to you What you tap, open and view inside the app, plus which ads you have seen. There is no single iOS switch. Look for an analytics or personalised-ads toggle in the app's own settings.
DiagnosticsNot linked to you Crash logs, launch times, hang rates and energy use. Settings › Privacy & Security › Analytics & Improvements › Share With App Developers controls what Apple passes on; the app's own crash reporting is separate.
Reading the label

What Authenticator App's label means for you

Authenticator App's label has 4 types under “Data Not Linked to You”. A data type can appear in more than one section when it is used for different purposes — for example, identifiers used for both analytics and advertising.

Every type on Authenticator App's label is in the “not linked” section, so the developer says the data is stripped of anything that identifies you before it is used. That is typical of anonymous analytics and crash reporting. Not linked is still collected: the data leaves your phone.

The items that deserve the most attention are user content. This is the content you actually care about. Where it is stored, who can read it and how it is backed up matters more than any other line on the label.

Authenticator apps generate the second factor for your logins. The biggest practical risk is not data collection but losing your codes when you lose your phone. Turn on encrypted backup or export your accounts, and save the recovery codes each service gave you.

Among the 173 authenticator apps in our snapshot with a label, 36% declare tracking, 45% collect data linked to you and 40% say they collect nothing. Authenticator App lists 4 data types, more than the average of 1.8 for this group.

Productivity apps tend to collect the work you do in them — documents, notes and files — so User Content is common. The question is whether it syncs to the developer's servers and how it is protected there.

On your iPhone

Settings to check for Authenticator App

  1. 1

    Photos

    Settings › Privacy & Security › Photos. Limited Access lets you pick exactly which pictures the app can see; Add Photos Only lets it save without reading your library.

  2. 2

    Lock the app

    On iOS 18 and later, touch and hold the icon and choose Require Face ID. Anyone who picks up your unlocked phone then needs your face, fingerprint or passcode to open it.

  3. 3

    Notifications

    Settings › Notifications › Authenticator App › Show Previews: When Unlocked keeps message and account details off the Lock Screen.

Cross-app tracking

Does Authenticator App track you?

No tracking declared

There is no “Data Used to Track You” section on Authenticator App's label.

Does Authenticator App track you? Full answer and how to stop it →

iOS 18 and later

Lock Authenticator App behind Face ID

  1. Find Authenticator App on your Home Screen or in App Library.
  2. Touch and hold the icon until the quick-actions menu opens.
  3. Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
  4. Tap Require Face ID again to confirm. Authenticator App now asks for authentication every time it opens.

The lock is an iPhone feature, so it works whether or not Authenticator App has a passcode of its own. It does not change what the app sends to its developer.

Lock or hide Authenticator App: step-by-step guide →

From the App Store record

About Authenticator App

DeveloperUNSTABLE, SL
App Store categoryProductivity (also Utilities)
Latest version4.1.1, released October 2026
First releasedNovember 2020
RequiresiOS 15.0 or later
Size144 MB
Age rating4+
Languages2 (EN, ES)
Bundle IDcom.2stable.2fa

The current version shipped in October 2026, so the app is actively maintained and its label is likely current. Labels are updated by developers when practices change.

Also by UNSTABLE, SL: Password Manager.

Read with care

What the label cannot tell you

  • A label is self-reported. Apple publishes the developer's answers and can reject apps that misrepresent them, but it does not independently verify what Authenticator App sends.
  • It does not say where data is stored, how long it is kept, whether it is encrypted, or which companies receive it. The privacy policy covers those points.
  • Optional data counts: if a feature lets you add something (a profile photo, a phone number), the type is listed even if you never use the feature.
  • Data handled only on your iPhone is not 'collected', so a no-collection label is compatible with an app that reads your files locally.
  • Third-party sign-in, payment processors and SDKs are supposed to be included, but a label can lag behind a new version.

The question to ask Authenticator App's developer: If this iPhone is lost, how do I restore my codes?

How it compares

Authenticator App vs similar authenticator apps

Data types listed on each App Store privacy label
Tracks youLinked to youNot linkedCollects nothing

Fewer types is not automatically safer: a cloud backup app has to collect your files to work. Compare like with like.

Checking another app?

Look up any of our apps in seconds, or put two labels side by side.

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All authenticator apps → Who tracks you? A–Z → Apps that collect user content → Privacy label decoder →

Do it now

Your Authenticator App privacy checklist

Tick what you have done
Tick each step as you do it on your iPhone.

Done. You have applied every control the label points to.

Quick quiz

True or false?

  1. Q1Authenticator App's privacy label says it uses data to track you.
    Right.
    Not quite.

    False: there is no Data Used to Track You section on Authenticator App's label.

  2. Q2Apple tests every app to confirm its privacy label is accurate.
    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.

  3. Q3Authenticator App collects User Content.
    Right.
    Not quite.

    True: User Content appears on its label, in the Not Linked to You section.

  4. Q4Data “Not Linked to You” is never sent off your iPhone.
    Right.
    Not quite.

    It is collected and sent; the developer says it is de-identified rather than tied to your account or device.

  5. Q5Tapping “Ask App Not to Track” can stop an app from working.
    Right.
    Not quite.

    Apple's rules require apps to work the same whether or not you allow tracking.

Questions people ask

Authenticator App privacy FAQ

Is Authenticator App safe to use?
Based on its App Store privacy label, authenticator App collects some data but says none of it is linked to your identity, and none is used for tracking. Whether that is acceptable depends on what you will store in it. The label is developer-reported, not an independent security test.
Does Authenticator App track you?
No. Authenticator App's label has no Data Used to Track You section.
What data does Authenticator App collect?
User content, purchases, usage data and diagnostics. None of it is linked to your identity.
Who makes Authenticator App?
UNSTABLE, SL, according to the App Store. It was first released in November 2020 and the current version is 4.1.1.
Can I lock Authenticator App with Face ID?
On iOS 18 or later, touch and hold Authenticator App's icon and choose Require Face ID (or Touch ID / Passcode). This is an iPhone feature and works for most downloaded apps, whether or not the app has its own lock.
How does Authenticator App compare with other authenticator apps?
Across 173 authenticator apps with labels in our snapshot, 36% declare tracking and 40% say they collect no data. Authenticator App lists 4 data types against an average of 1.8.
If this iPhone is lost, how do I restore my codes?
The privacy label cannot answer that. Look for it in Authenticator App's privacy policy or support pages, linked from the App Store listing. Turn on encrypted backup or export your accounts, and save the recovery codes each service gave you.
How do I delete my data from Authenticator App?
Apps that let you create an account must also let you start account deletion from inside the app (an App Store rule since June 2022). Deleting the app from your iPhone alone does not delete data already sent to the developer.
Facts on this page come from Authenticator App on the App Store, as reported by the developer. Checked 2026-11-01. How we collect data · Report a correction