# Open Authenticator vs Authenticator

The clearest difference is rating: Open Authenticator at 5.0 against Authenticator's 4.5. Open Authenticator also leads on in-app purchases (none vs 19) and ads (none vs shown). Authenticator's advantage is ratings volume (135 vs 1). On price, review sentiment and device support there is nothing between them.

Both are free to download. Authenticator sells 17 in-app purchases, starting at $0.99 per 7 days. Open Authenticator asks for nothing beyond the download.

Open Authenticator holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Authenticator has 135 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

## The numbers

| Metric | Open Authenticator | Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/open-authenticator/id1583588049/reviews)** | [4.5 (135 ratings)](https://appshunter.io/ios/app/authenticator-mobile-2fa-mfa/id6450538201/reviews) |
| Number of ratings | 1 | **135** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 127 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Odroe Inc.](https://appshunter.io/developer/1477720111) | [ZipoApps](https://appshunter.io/developer/1671444635) |

## 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 page](https://appshunter.io/ios/app/authenticator-mobile-2fa-mfa/id6450538201)

Enhance your online security with this app that generates time-based one-time passwords for two-factor authentication. It securely stores all your accounts in one place and works offline, offering peace of mind against cyber threats.

**Highlights:** Generates secure TOTP codes, Stores all accounts in one app, Works offline, Secure cloud backup and sync, Biometric and PIN protection, Auto-fill and copy to clipboard

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access | $0.99 | per 7 days |
| Unlimited access | $1.99 | per 7 days |
| Unlimited access | $2.99 | per 7 days |
| Unlimited access | $3.99 | per 7 days |
| Unlimited access | $4.99 | per 7 days |
| 2FA Authenticator App: Secure | $5.99 | per 7 days |
| 2FA Authenticator App: Secure | $5.99 | per 7 days |
| Unlimited access | $5.99 | per 7 days |
| Unlimited access | $6.99 | per 7 days |
| Unlimited access | $7.99 | per 7 days |
| Unlimited access | $8.99 | per 7 days |
| Unlimited access | $9.99 | per year |
| Authenticate ID: Authorization | $19.99 | per month |
| Unlimited access | $19.99 | per month |
| Unlimited access | $29.99 | per month |
| Unlimited access | $39.99 | per year |
| Unlimited access | $49.99 | per year |


## Frequently asked questions

### Is Open Authenticator free?

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

### Is Authenticator free?

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

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

Open Authenticator is rated higher. Open Authenticator averages 5.0 out of 5 from 1 ratings, while Authenticator averages 4.5 from 135 ratings.

### Do Open Authenticator or Authenticator have ads?

Authenticator shows ads; Open Authenticator does not.

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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.*