Duo Mobile

At a glance

Published by Cisco Systems, Inc., Duo Mobile sits in the Business category on Google Play. The short description reads: Security made simple. It is free to download.

What the developer promises

The listing goes on to say “Duo Mobile works with Duo Security’s two-factor authentication service to make logins more secure”. One more point the description makes: “Additionally, you can use Duo Mobile to manage two-factor authentication for other application and web services that make use of passcodes”. The description says: “Duo Mobile also has a companion app for Wear OS, Duo Wear, making secure authentication even more convenient on your smartwatch”. In the developer’s words, “You will receive an activation link as part of Duo’s enrollment process”.

It also states that “You may add third-party accounts at any time”. Another line from the listing: “Additionally, we will request access to use your camera for the sole purpose of scanning QR codes when activating accounts”. The listing goes on to say “Accounts can be activated by other methods if you choose not to do so”. All of this comes from the store listing, so read it as the developer’s own pitch.

What the ratings show

86,944 Google Play users have rated Duo Mobile, and the average lands at 4.11. Breaking that down: 69.0% gave five stars, 8.4% four, 3.8% three, 1.8% two and 16.9% one. Most people give it full marks, though the one star group is far from tiny.

Put differently, there are about 4 five star ratings for every one star rating, 60,020 against 14,714. The middle of the scale, two and three stars together, holds 5.6% of ratings (4,864 people). The listing shows 50,000,000+ installs, so the 86,944 ratings come from a slice of the people who installed it.

Listing details

The listing shows last updated Oct 19, 2026, version 4.124.0, Android 12 or newer, a content rating of Everyone and first released May 3, 2011. The Play page carries 6 screenshots, and the written description runs to about 168 words. The listing carries neither an ads label nor an in-app purchase label. There is no upfront price.

The downsides

16.9% of raters left one star, which is a visible group of unhappy players. Check the screenshots and the most recent reviews on the Play page before you rely on it.

Who it is for

Anyone looking at business apps who prefers a name they have heard of. Check the Android version and size on the listing first so it fits your phone. The listed content rating is Everyone.