# AXESYS Authenticator vs Open Authenticator by Skyost

The clearest difference is in-app purchases: AXESYS Authenticator at none against Open Authenticator by Skyost's 2. Open Authenticator by Skyost's advantage is update cadence (fortnightly vs every 23 months) and device support (4 vs 1). On price, ads and iOS requirement 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. AXESYS Authenticator asks for nothing beyond the download.

AXESYS Authenticator ships an update every 23 months, Open Authenticator by Skyost fortnightly. The most recent releases landed on October 9, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AXESYS Authenticator | Open Authenticator by Skyost |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (9 ratings)](https://appshunter.io/ios/app/open-authenticator-by-skyost/id6479272927/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 23 months | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 35 MB | 56 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Axesys](https://appshunter.io/developer/1265132764) | [Hugo Delaunay](https://appshunter.io/developer/1456648264) |

## What reviewers say

### AXESYS Authenticator

[App page](https://appshunter.io/ios/app/axesys-authenticator/id1577519108)

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

**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 AXESYS Authenticator free?

AXESYS 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.

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

Neither AXESYS Authenticator nor Open Authenticator by Skyost shows ads.

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

AXESYS Authenticator ships an update every 23 months, and Open Authenticator by Skyost fortnightly. Most recently, AXESYS Authenticator was updated on October 9, 2026 and Open Authenticator by Skyost on October 14, 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.*