# Duo Authenticator vs Authenticator App－2FAS・OTP・MFA

The clearest difference is update cadence: Authenticator App－2FAS・OTP・MFA at fortnightly against Duo Authenticator's monthly. Authenticator App－2FAS・OTP・MFA also leads on device support (3 vs 1). On price, rating, review sentiment and ratings volume 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－2FAS・OTP・MFA sells 7 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.2 for Duo Authenticator against 4.2 for Authenticator App－2FAS・OTP・MFA. Both are backed by a comparable volume of ratings — 24 and 46 respectively. Written reviews split almost evenly too, at 50% and 50% positive.

Duo Authenticator ships an update monthly, Authenticator App－2FAS・OTP・MFA fortnightly. The most recent releases landed on October 9, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Duo Authenticator | Authenticator App－2FAS・OTP・MFA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (24 ratings)](https://appshunter.io/ios/app/duo-authenticator/id1665454984/reviews) | [4.2 (46 ratings)](https://appshunter.io/ios/app/authenticator-app2fasotpmfa/id6446979632/reviews) |
| Number of ratings | 24 | **46** |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 58 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Petr Polasek](https://appshunter.io/developer/1613323784) | [Global Mobile App Limited](https://appshunter.io/developer/1783684102) |

## 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－2FAS・OTP・MFA

[App page](https://appshunter.io/ios/app/authenticator-app2fasotpmfa/id6446979632)

This app enhances security and simplifies account management with features like QR code scanning for 2FA, a password manager with autofill, and secure data storage. It offers iCloud backup and sync, dark mode, and the ability to import data from other authenticator apps.

**Highlights:** QR code scanning for 2FA, Password manager with autofill, iCloud backup and sync, Unlock with Master Password/Face ID, Import from other authenticator apps, Dark mode, Credit card and vital ID storage

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator VIP 1 Week | $6.99 | per 7 days |
| Authenticator VIP 1 Month | $14.99 | per month |
| Authenticator VIP 1 Year OFF | $22.99 | per year |
| Authenticator 1 Year | $24.99 | per year |
| Authenticator VIP 1 Year Trial | $24.99 | per year |
| Authenticator VIP Lifetime | $29.99 | one-time |
| Authenticator VIP Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is Duo Authenticator free?

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

### Is Authenticator App－2FAS・OTP・MFA free?

Authenticator App－2FAS・OTP・MFA is free to download, with in-app purchases available.

### Which has better reviews, Duo Authenticator or Authenticator App－2FAS・OTP・MFA?

Duo Authenticator and Authenticator App－2FAS・OTP・MFA are both rated 4.2 out of 5 on the App Store, from 24 and 46 ratings respectively.

### Do Duo Authenticator or Authenticator App－2FAS・OTP・MFA have ads?

Both Duo Authenticator and Authenticator App－2FAS・OTP・MFA show ads.

### Which is updated more often, Duo Authenticator or Authenticator App－2FAS・OTP・MFA?

Duo Authenticator ships an update monthly, and Authenticator App－2FAS・OTP・MFA fortnightly. Most recently, Duo Authenticator was updated on October 9, 2026 and Authenticator App－2FAS・OTP・MFA on October 5, 2026.

---

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