# Duo Authenticator vs Authenticator App

The clearest difference is ads: Authenticator App at none against Duo Authenticator's shown. Authenticator App also leads on device support (4 vs 1) and ratings volume (86 vs 24). Duo Authenticator's advantage is review sentiment (50% vs 29%). On price, rating, update cadence and in-app purchases there is nothing between them.

Both are free to download. Duo Authenticator sells 3 in-app purchases, starting at $3.99 per 7 days and Authenticator App sells 6 in-app purchases, starting at $4.19 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator App holds the better App Store score, 4.4 against 4.2. Both are backed by a comparable volume of ratings — 24 and 86 respectively. Written reviews complicate that: 50% of Duo Authenticator's written reviews are positive against 29% of Authenticator App's, so the app with the better star average is not the one people write more warmly about.

Duo Authenticator ships an update monthly, Authenticator App every 2 weeks. The most recent releases landed on October 9, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Duo Authenticator | Authenticator App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (24 ratings)](https://appshunter.io/ios/app/duo-authenticator/id1665454984/reviews) | **[4.4 (86 ratings)](https://appshunter.io/ios/app/authenticator-app-2fa-otp/id6480513197/reviews)** |
| Number of ratings | 24 | **86** |
| Positive reviews | **50.0% of reviews** | 28.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 106 MB |
| Requires iOS | 16.6 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Petr Polasek](https://appshunter.io/developer/1613323784) | [Tatsat Brahmbhatt](https://appshunter.io/developer/1692901637) |

## What reviewers say

### Duo Authenticator

[App page](https://appshunter.io/ios/app/duo-authenticator/id1665454984)

Enhance your online security with this multi-factor authentication app. It provides an extra layer of protection for your accounts by generating time-sensitive codes, even when offline. Secure your sensitive information with ease and peace of mind.

**Highlights:** Quick and easy setup, Wide service compatibility, Time-sensitive security codes, Offline code generation, End-to-end encryption, Security code protection

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium 1 Week | $3.99 | per 7 days |
| Premium 1 Month | $9.99 | per month |
| Premium 1 Year | $29.99 | per year |


### Authenticator App

[App page](https://appshunter.io/ios/app/authenticator-app-2fa-otp/id6480513197)

Secure your online accounts with this 2FA OTP manager. It offers easy account setup via QR code scanning or manual entry, and enhances security with biometric authentication. All one-time passwords are stored locally on your device for increased protection.

**Highlights:** 2FA OTP management, QR code scanning for account setup, Manual code entry, Biometric unlock (fingerprint/face recognition), Local storage of OTPs, Supports numerous platforms

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.19 | per 7 days |
| Weekly | $9.99 | per 7 days |
| Yearly | $29.49 | per year |
| Yearly | $53.90 | per year |
| Lifetime | $59.99 | one-time |
| Lifetime | $79.99 | one-time |


## Frequently asked questions

### Is Duo Authenticator free?

Duo Authenticator is free to download, with in-app purchases available.

### Is Authenticator App free?

Authenticator App is free to download, with in-app purchases available.

### Which has better reviews, Duo Authenticator or Authenticator App?

Authenticator App is rated higher. Duo Authenticator averages 4.2 out of 5 from 24 ratings, while Authenticator App averages 4.4 from 86 ratings.

### Do Duo Authenticator or Authenticator App have ads?

Duo Authenticator shows ads; Authenticator App does not.

### Which is updated more often, Duo Authenticator or Authenticator App?

Duo Authenticator ships an update monthly, and Authenticator App every 2 weeks. Most recently, Duo Authenticator was updated on October 9, 2026 and Authenticator App on October 2, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*