# Rublon Authenticator vs privacyIDEA Authenticator

The clearest difference is update cadence: Rublon Authenticator at every 3 weeks against privacyIDEA Authenticator's every 2 months. On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 3.1 for Rublon Authenticator against 3.0 for privacyIDEA Authenticator. Both are backed by a comparable volume of ratings — 8 and 7 respectively. Written reviews are what separate them: 50% of Rublon Authenticator's written reviews are positive against 43% of privacyIDEA Authenticator's.

Rublon Authenticator ships an update every 3 weeks, privacyIDEA Authenticator every 2 months. The most recent releases landed on September 25, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | Rublon Authenticator | privacyIDEA Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.1 (8 ratings)](https://appshunter.io/ios/app/rublon-authenticator/id1434412791/reviews)** | [3.0 (7 ratings)](https://appshunter.io/ios/app/privacyidea-authenticator/id1445401301/reviews) |
| Number of ratings | **8** | 7 |
| Positive reviews | **50.0% of reviews** | 42.9% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | Free |
| Size | 37 MB | 30 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rublon Sp. z o.o.](https://appshunter.io/developer/500136555) | [NetKnights GmbH](https://appshunter.io/developer/1445401030) |

## What reviewers say

### Rublon Authenticator

[App page](https://appshunter.io/ios/app/rublon-authenticator/id1434412791)

This app provides two-factor authentication for secure remote access. It allows users to approve logins directly from their mobile device, even without an internet connection.

**Highlights:** Two-factor authentication, Secure remote access, Offline login approval, Mobile device integration

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

**In-app purchases:** none


### privacyIDEA Authenticator

[App page](https://appshunter.io/ios/app/privacyidea-authenticator/id1445401301)

This app transforms your smartphone into a secure authentication device for two-factor authentication. It seamlessly integrates with a backend system, offering a more secure rollout process than traditional tokens.

**Highlights:** Two-factor authentication, OTP token support, Secure rollout process, Smartphone as authentication device, REST API integration

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

**In-app purchases:** none


## Frequently asked questions

### Is Rublon Authenticator free?

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

### Is privacyIDEA Authenticator free?

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

### Which has better reviews, Rublon Authenticator or privacyIDEA Authenticator?

Rublon Authenticator is rated higher. Rublon Authenticator averages 3.1 out of 5 from 8 ratings, while privacyIDEA Authenticator averages 3.0 from 7 ratings.

### Do Rublon Authenticator or privacyIDEA Authenticator have ads?

Neither Rublon Authenticator nor privacyIDEA Authenticator shows ads.

### Which is updated more often, Rublon Authenticator or privacyIDEA Authenticator?

Rublon Authenticator ships an update every 3 weeks, and privacyIDEA Authenticator every 2 months. Most recently, Rublon Authenticator was updated on September 25, 2026 and privacyIDEA Authenticator on September 26, 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.*