# Duo Authenticator vs Authenticator °

The clearest difference is rating: Authenticator ° at 4.8 against Duo Authenticator's 4.2. Authenticator ° also leads on ads (none vs shown) and review sentiment (77% vs 50%). On price, in-app purchases, monetization model and iOS requirement 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 ° sells 14 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Authenticator ° holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Authenticator ° has 594 ratings behind it against 24, so its average is the more settled of the two. Written reviews point the same way: 50% of Duo Authenticator's written reviews are positive against 77% of Authenticator °'s.

Duo Authenticator ships an update monthly, Authenticator ° every 2 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Duo Authenticator | Authenticator ° |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (24 ratings)](https://appshunter.io/ios/app/duo-authenticator/id1665454984/reviews) | **[4.8 (594 ratings)](https://appshunter.io/ios/app/authenticator/id6446651396/reviews)** |
| Number of ratings | 24 | **594** |
| Positive reviews | 50.0% of reviews | **76.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 60 MB | 55 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Petr Polasek](https://appshunter.io/developer/1613323784) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## 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 page](https://appshunter.io/ios/app/authenticator/id6446651396)

This app enhances your online security by generating time-sensitive passwords for two-factor and multi-factor authentication. It offers seamless data synchronization across devices, Apple Watch support, and robust encryption for your sensitive information.

**Highlights:** One-Time Passwords (OTP), Seamless Data Synchronization, Apple Watch Support, End-to-End Encryption, Import/Export Encrypted Backups, Auto-Lock & Biometric Authentication

**Features:** macOS Compatibility

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Monthly | $9.99 | per month |
| Monthly | $9.99 | per month |
| 3 Month | $12.99 | per 3 months |
| 1 Year, 50% off | $19.99 | per year |
| 1 Year Discounted | $22.99 | per year |
| 1 Year, 30% off | $27.99 | per year |
| 1 Year with initial offer | $34.99 | per year |
| Annual subscription | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime, intro offer | $0.29 | one-time |
| Lifetime | $59.99 | one-time |

**What reviewers like**

- 👍 Easy to install and use
- 🔒 Secure password management
- 🚀 Efficient and fast
- 👍 Great user interface
- 🔒 Robust security features

**What reviewers complain about**

- 🐛 Occasional crashes or bugs
- 🔒 Concerns about cloud storage security
- 🤔 Forced 5-star review before use
- 🤔 Unclear or confusing onboarding process

**Reported bugs**

- List of saved sites/accounts disappearing
- Trouble logging in or resetting password
- Incompatibility with older devices

**Requested features**

- Allow renaming of accounts
- Add pop-up notifications like other authenticators
- Improve sync with desktop/laptop
- Provide more theme/customization options


## Frequently asked questions

### Is Duo Authenticator free?

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

### Is Authenticator ° free?

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

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

Authenticator ° is rated higher. Duo Authenticator averages 4.2 out of 5 from 24 ratings, while Authenticator ° averages 4.8 from 594 ratings.

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

Duo Authenticator shows ads; Authenticator ° does not.

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

Duo Authenticator ships an update monthly, and Authenticator ° every 2 weeks. Most recently, Duo Authenticator was updated on October 9, 2026 and Authenticator ° on October 7, 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.*