# FreeOTP Authenticator vs Open Authenticator by Skyost

The clearest difference is rating: Open Authenticator by Skyost at 4.4 against FreeOTP Authenticator's 3.2. Open Authenticator by Skyost also leads on update cadence (fortnightly vs every 6 months). FreeOTP Authenticator's advantage is review sentiment (37% vs 0%) and in-app purchases (none vs 2). On price, ads and device support 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. FreeOTP Authenticator asks for nothing beyond the download.

Open Authenticator by Skyost holds the better App Store score, 4.4 against 3.2. That said, the two scores are not equally well evidenced: FreeOTP Authenticator has 173 ratings behind it against 9, so its average is the more settled of the two. Written reviews complicate that: 37% of FreeOTP Authenticator's written reviews are positive against 0% of Open Authenticator by Skyost's, so the app with the better star average is not the one people write more warmly about.

FreeOTP Authenticator ships an update every 6 months, Open Authenticator by Skyost fortnightly. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | FreeOTP Authenticator | Open Authenticator by Skyost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.2 (173 ratings)](https://appshunter.io/ios/app/freeotp-authenticator/id872559395/reviews) | **[4.4 (9 ratings)](https://appshunter.io/ios/app/open-authenticator-by-skyost/id6479272927/reviews)** |
| Number of ratings | **173** | 9 |
| Positive reviews | **37.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 11 MB | 56 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Red Hat](https://appshunter.io/developer/533936015) | [Hugo Delaunay](https://appshunter.io/developer/1456648264) |

## What reviewers say

### FreeOTP Authenticator

[App page](https://appshunter.io/ios/app/freeotp-authenticator/id872559395)

Generate one-time passwords for enhanced online account security. This app creates temporary codes that, when used with your regular password, significantly strengthen your login protection. It functions even without an internet connection.

**Highlights:** Generates one-time passwords, Works offline (airplane mode), Supports Google, Facebook, GitHub, etc., Compatible with TOTP/HOTP protocols, Open source software

**In-app purchases:** none

**What reviewers like**

- 🚀 Simple and lightweight
- 🔒 Open source and privacy-focused
- 👍 Clean and intuitive interface
- 💡 Customizable icons for accounts

**What reviewers complain about**

- 🐛 Crashes and bugs after recent updates
- 🔒 Lack of backup/restore functionality
- 💡 Limited customization options
- 👎 Unable to edit or delete accounts

**Reported bugs**

- Camera not working for QR code scanning
- App crashing on launch or when unlocking accounts
- UI issues on larger iOS devices

**Requested features**

- Add ability to manually enter account details
- Implement iCloud/cloud backup sync
- Allow renaming and deleting of accounts
- Provide Apple Watch support


### 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 FreeOTP Authenticator free?

FreeOTP 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, FreeOTP Authenticator or Open Authenticator by Skyost?

Open Authenticator by Skyost is rated higher. FreeOTP Authenticator averages 3.2 out of 5 from 173 ratings, while Open Authenticator by Skyost averages 4.4 from 9 ratings.

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

Neither FreeOTP Authenticator nor Open Authenticator by Skyost shows ads.

### Which is updated more often, FreeOTP Authenticator or Open Authenticator by Skyost?

FreeOTP Authenticator ships an update every 6 months, and Open Authenticator by Skyost fortnightly. Most recently, FreeOTP Authenticator was updated on September 23, 2026 and Open Authenticator by Skyost on September 10, 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.*