# Open Authenticator vs Authenticator App ™

The clearest difference is review sentiment: Open Authenticator at 100% against Authenticator App ™'s 30%. Open Authenticator also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 2). Authenticator App ™'s advantage is ratings volume (25K vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Authenticator App ™ sells 2 in-app purchases, starting at $9.99 per month. Open Authenticator asks for nothing beyond the download.

Open Authenticator holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Authenticator App ™ has 25K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 100% of Open Authenticator's written reviews are positive against 30% of Authenticator App ™'s.

## The numbers

| Metric | Open Authenticator | Authenticator App ™ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/open-authenticator/id1583588049/reviews)** | [4.4 (25K ratings)](https://appshunter.io/ios/app/authenticator-app/id6443508147/reviews) |
| Number of ratings | 1 | **25K** |
| Positive reviews | **100.0% of reviews** | 29.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 19 MB |
| Requires iOS | **12.1** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Odroe Inc.](https://appshunter.io/developer/1477720111) | [Codenhagen.IO ApS](https://appshunter.io/developer/1617641724) |

## What reviewers say

### Open Authenticator

[App page](https://appshunter.io/ios/app/open-authenticator/id1583588049)

This application generates secure, time-based one-time passwords for authentication. Its open-source code is community-reviewed, ensuring no backdoors and consistent TOTP compliance for robust security.

**Highlights:** HMAC-based One-time Password generation, TOTP compliance, Completely open-source code, Community supervised, No backdoor security

**Features:** macOS Compatibility

**In-app purchases:** none


### Authenticator App ™

[App page](https://appshunter.io/ios/app/authenticator-app/id6443508147)

This app provides a secure way to manage two-factor authentication (2FA) for your online accounts. It generates time-based one-time passwords (TOTP) that update every 30 seconds, offering an extra layer of security without needing an internet connection. Features include iCloud backup, cross-device synchronization, and biometric unlock.

**Highlights:** Time-based one-time password (TOTP) generation, Secure iCloud backup and encryption, Synchronization across all devices, Unlock with FaceID or password, 100% Ad-Free experience, Compatible with over 2,500 websites and services

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator Premium | $9.99 | per month |
| Authenticator Premium | $39.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Works well
- 👍 Simple and straightforward
- 🚀 Functional tool

**What reviewers complain about**

- 🐛 Unable to remove accounts
- 🐛 Difficult to cancel subscription
- 🐛 Doesn't work as expected
- 🐛 Not user friendly
- 🐛 Unreliable

**Reported bugs**

- Login screen freezes
- QR code scanning issues
- Accounts not syncing properly
- Subscription not cancelling

**Requested features**

- Dark mode option
- Better customer support
- Easier subscription management


## Frequently asked questions

### Is Open Authenticator free?

Open Authenticator is free to download, with no in-app purchases.

### Is Authenticator App ™ free?

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

### Which has better reviews, Open Authenticator or Authenticator App ™?

Open Authenticator is rated higher. Open Authenticator averages 5.0 out of 5 from 1 ratings, while Authenticator App ™ averages 4.4 from 25K ratings.

### Do Open Authenticator or Authenticator App ™ have ads?

Neither Open Authenticator nor Authenticator App ™ shows ads.

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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.*