# Open Authenticator vs Open Authenticator by Skyost

The clearest difference is review sentiment: Open Authenticator at 100% against Open Authenticator by Skyost's 0%. Open Authenticator also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 2). Open Authenticator by Skyost's advantage is ratings volume (9 vs 1) and device support (4 vs 2). On price and ads there is nothing between them.

Both are free to download. Open Authenticator by Skyost sells 2 in-app purchases, starting at $0.99 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: Open Authenticator by Skyost has 9 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 0% of Open Authenticator by Skyost's.

## The numbers

| Metric | Open Authenticator | Open Authenticator by Skyost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/open-authenticator/id1583588049/reviews)** | [4.4 (9 ratings)](https://appshunter.io/ios/app/open-authenticator-by-skyost/id6479272927/reviews) |
| Number of ratings | 1 | **9** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | **Free** | Free with in-app purchases |
| Size | 24 MB | 56 MB |
| Requires iOS | **12.1** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Odroe Inc.](https://appshunter.io/developer/1477720111) | [Hugo Delaunay](https://appshunter.io/developer/1456648264) |

## 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


### Open Authenticator by Skyost

[App page](https://appshunter.io/ios/app/open-authenticator-by-skyost/id6479272927)

This app generates Time-Based One-Time Passwords (TOTPs) to enhance online account security through two-factor authentication. It offers cross-platform syncing, a self-hostable backend, and an intuitive interface for managing your security codes.

**Highlights:** Generates Time-Based One-Time Passwords (TOTPs), Enhances online account security with 2FA, Cross-platform token syncing, Self-hostable backend option, Fast and easy-to-use interface, Open-source and free for local use

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Contributor Plan: Monthly | $0.99 | per month |
| Contributor Plan: Annual | $9.99 | per year |


## Frequently asked questions

### Is Open Authenticator free?

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

### Is Open Authenticator by Skyost free?

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

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

Open Authenticator is rated higher. Open Authenticator averages 5.0 out of 5 from 1 ratings, while Open Authenticator by Skyost averages 4.4 from 9 ratings.

### Do Open Authenticator or Open Authenticator by Skyost have ads?

Neither Open Authenticator nor Open Authenticator by Skyost 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.*