Duo Mobile on iOS
Modified on: Wed, Nov 29 2023 10:35 AMInstall Duo Mobile
Find the latest version of Duo Mobile in the App Store.
Supported Platforms: The current version of Duo Mobile supports iOS 14.0 and greater.
To see which version of Duo Mobile is installed on your device, open Duo Mobile and tap the menu icon. The app version will be displayed in the bottom left corner.
Activate Duo Mobile for the First Time
When you enroll in Duo for the first time and choose to add an iOS device or use Duo Push, you're shown a QR code to scan with the Duo Mobile app to complete activation.
Launch Duo Mobile and step through the introduction screens.
To proceed with adding your initial Duo account to Duo Mobile, tap Use a QR code.
Use your camera to scan the QR code shown by Duo Enrollment in your browser. If you're prompted to allow Duo Mobile permission to use your device camera, please grant it.
Give the new account a name to complete adding it to Duo Mobile.
It's a good idea to take a few minutes to practice approving and denying Duo authentication requests if you haven't used Duo before. Tap Practice now to go through some training screens like this one. If you feel comfortable using Duo Mobile to log in to applications you can tap Skip.
Respond to Duo Mobile even faster by enabling notifications. You'll see new Duo Push requests when they arrive at your device, and can approve or deny from the notification without opening the app. Tap Allow notifications to permit notifications from Duo Mobile in iOS settings.
Return to the accounts list to exit the new account process.
You'll see your newly-added Duo account in the accounts list. Now you're able to respond to Duo Push authentication requests, or generate passcodes to log in to applications.
Duo Push
If you choose to authenticate with Duo Push, you'll get a login request sent to your phone — just press Approve to authenticate.
If you get a login request that you weren't expecting, press Deny to reject the request. You’ll be asked if this was a suspicious login. If you aren't trying to log into an application or service protected by Duo and don't recognize the request, tap Yes to notify your organization's Duo administrator. If you made a mistake or the login isn't suspicious, tap No to deny the request without reporting it.
Duo Push and Notifications
You can respond to Duo Push requests from the iOS lock screen or banner notification. The actions presented to you when you respond to the notification depend on your organization's Duo policy settings, such as whether or not you can approve the login request without PIN or biometric verification.
Perform a firm longpress on the Duo Mobile notification from the lock screen to reveal the "Approve" or "Deny" actions. Tap an action and supply your passcode or biometric verification (face or fingerprint) to complete the action.
When your screen is unlocked, long-press or swipe down on the Duo Mobile banner notification received to reveal the authentication actions.
On devices that do not feature 3D Touch, swipe left on the Duo Mobile notification to reveal the actions.
Face ID and Touch ID
Your organization may require biometric verification when you approve a Duo Push request. You can approve Duo authentication requests with Face ID if your device supports it.
The first time you receive a Duo Push request on your iOS device which requires biometric verification, you'll be prompted to grant Face ID permission to the Duo Mobile app. Tap OK to proceed.
Scan your face in the same manner that you use to unlock your device to approve the Duo login request.
If your first try isn't successful, tap Try Face ID Again to scan your face again.
If you're not able to approve the login request with Face ID or if you did not grant Duo Mobile permission to use Face ID, you can approve the Duo authentication request using the device's passcode.
If you're using a Touch ID capable iOS device you can scan your fingerprint to approve Duo authentication requests.
If you're not able to scan your fingerprint using the Touch ID sensor you can also approve the Duo authentication request using the device's passcode.
Duo Mobile Appearance
Adaptive View
The accounts list in Duo Mobile adapts to you. If you rotate your device into a landscape view, your Duo Mobile accounts list rotates as well.
The individual accounts shown in the list change appearance as well, showing the full account information when you just have a few accounts, and switching to a minimized account view when you have many accounts to minimize scrolling in the app.
Dark Mode
Duo Mobile's dark mode depends on your iOS system settings. There is no in-app toggle to enable dark mode. If your device has the system-wide dark setting enabled, Duo Mobile automatically switches to dark mode.
You can enable dark mode on iOS in a few different ways:
- Go to Settings → Display & Brightness → Appearance and select Dark.
- If you have an iPhone X or later, swipe down on the right side of the screen to open Control Center. Press and hold the Brightness control to access additional options, and tap the Dark Mode button.
- If you have an iPhone 8 or earlier, swipe up from the bottom edge of the screen to open Control Center. Press and hold the Brightness control to access additional options, and tap the Dark Mode button.