Duo Mobile review

Duo Mobile is the app you install because your workplace or university uses Cisco Duo, and it does that job well. Sign-ins send a Duo Push notification that you approve in one tap, or deny just as fast if you did not start the login, and the app also generates time-based passcodes for login prompts. It runs on iPhone, iPad and Apple Watch as well as Android, and you can add third-party accounts that use passcodes. For a small business, Duo is also a service you can buy: Duo Free covers teams of 10 or fewer users with MFA and the free app, and paid editions are Essentials at $3, Advantage at $6 and Premier at $9 per user a month, with a 30-day free trial. For personal use alone it makes less sense, because Duo accounts need activation through an organization's enrollment and the app listing documents fewer backup options than Ente Auth or Google Authenticator.

Who it is for

employees and small teams using Cisco Duo

Price

App free; Duo Free covers up to 10 users, Duo Essentials $3 per user a month.

Duo Essentials Best for simple security management and seamless authentication. $3 per user/month
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Duo Push approvals on iPhone, iPad and Apple Watch
• Generates time-based passcodes for login prompts
• Add third-party accounts that use passcodes
• Duo Free service for teams of 10 or fewer users
• Paid editions at $3, $6 and $9 per user a month

Strengths and weaknesses

• Strength: One-tap push approval and quick denial of unfamiliar logins
• Strength: Small businesses can run Duo Free for up to 10 users
• Strength: Apple Watch support
• Weakness: Duo accounts must be activated through an organization's enrollment
• Weakness: Built for workplaces more than personal use
• Weakness: No cloud backup is documented for personal third-party codes on the app listing

Key facts

• Price: App free; Duo Essentials $3 per user a month
• Platforms: iOS, iPadOS, Apple Watch, Android
• Free service: Duo Free, up to 10 users
• Free trial: 30 days on paid editions

Where it ranks

Duo Mobile is No. 9 in our Best Two Factor Authentication Apps verdict.