Works for ProMFA Authenticator whether or not it has its own passcode. No download needed.
Touch and hold ProMFA Authenticator's icon, tap Require Face ID, then confirm. On iOS 18 and later that puts ProMFA Authenticator behind Face ID, Touch ID or your passcode; choose Hide and Require Face ID instead to move it into App Library's Hidden folder as well.
Lock ProMFA Authenticator with Face ID
- Find ProMFA Authenticator on your Home Screen or in App Library.
- Touch and hold the icon until the quick-actions menu opens.
- Tap Require Face ID (or Require Touch ID / Require Passcode, depending on your iPhone).
- Tap Require Face ID again to confirm. ProMFA Authenticator now asks for authentication every time it opens.
To test it, close ProMFA Authenticator from the App Switcher and open it again. You should see the Face ID prompt before any content appears.
Hide ProMFA Authenticator in App Library
- Touch and hold ProMFA Authenticator's icon and tap Require Face ID.
- Choose Hide and Require Face ID instead of Require Face ID.
- Confirm. The icon leaves your Home Screen and moves to the Hidden folder at the bottom of App Library.
- To open it later, swipe to App Library, tap Hidden and authenticate.
Hiding also locks the app. To undo either, touch and hold the icon again and choose Don't Require Face ID.
Why lock ProMFA Authenticator?
ProMFA Authenticator is a authenticator app, the kind of app that tends to hold personal information you would not want on screen if someone borrows your unlocked phone. 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.
Business apps often handle other people's data — clients, colleagues and customers — so what they collect can affect more than you.
A lock answers one question — who can open the app on this iPhone. It does not change what ProMFA Authenticator sends to its developer; for that, see ProMFA Authenticator's full privacy report.
What the lock does and does not do
It does
- Ask for Face ID, Touch ID or passcode every time ProMFA Authenticator opens
- Hide message previews in notifications
- Keep ProMFA Authenticator's content out of Spotlight and Siri suggestions
- With Hide, remove the icon from the Home Screen
It does not
- Stop someone who knows your passcode
- Encrypt or change how ProMFA Authenticator stores data
- Sync to your iPad or other devices
- Remove ProMFA Authenticator from purchase history or Screen Time reports
Don't see Require Face ID?
- Update to iOS 18 or later in Settings › General › Software Update.
- Make sure a passcode is set in Settings › Face ID & Passcode; the lock needs one.
- Some Apple apps (Settings, Calculator, Camera, Maps, Find My, Clock) cannot be locked or hidden.
- If your iPhone is managed by work or school, the option may be restricted.
Other settings worth checking for ProMFA Authenticator
Notifications
Settings › Notifications › ProMFA Authenticator › Show Previews: When Unlocked keeps message and account details off the Lock Screen.
ProMFA Authenticator's full privacy label
The developer states that no data is collected from this app.
Lock these apps too
After you lock ProMFA Authenticator
Done. You have applied every control the label points to.
FAQ
Does ProMFA Authenticator have its own passcode?
What happens to ProMFA Authenticator's notifications when it is locked?
Can someone who knows my passcode open a locked app?
Is a locked ProMFA Authenticator encrypted?
Why can't I see the Require Face ID option?
Does hiding ProMFA Authenticator remove it from my purchase history?
Is ProMFA Authenticator safe? Full privacy report →Does ProMFA Authenticator track you? →Lock an app: A–Z →All business apps →