: If prompted with a security alert, select Settings and toggle on Allow from this source (or "Install Unknown Apps") for your browser.
To download and install the Duo Mobile APK (often referred to for "Duo Sat" related authentication), follow these steps to securely sideload the application onto your Android device. Download Duo Sat apk
: Return to the installer and select Install . Once finished, you can open the app to begin activation. Important Requirements & Security : If prompted with a security alert, select
: As of April 2026, Duo Mobile officially supports Android 12 and higher . Older versions like Android 11 may no longer be available in the Play Store. Once finished, you can open the app to begin activation
: Always download the APK directly from the official Duo website to avoid malware from third-party sites.
Are you setting this up for a or for third-party 2FA (like a personal social media account)? Duo Software Checksums and Downloads
: Open your mobile browser and navigate to the official download link: dl.duosecurity.com/DuoMobile-latest.apk.