# Clusterix Authenticator vs 2FA iAtomos

The clearest difference is update cadence: 2FA iAtomos at every 8 days against Clusterix Authenticator's every 2 months. 2FA iAtomos also leads on device support (4 vs 2). Clusterix Authenticator's advantage is iOS requirement (13.0 vs 15.5). On price, ads and in-app purchases there is nothing between them.

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

Clusterix Authenticator ships an update every 2 months, 2FA iAtomos every 8 days. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Clusterix Authenticator | 2FA iAtomos |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 8 days** |
| Size | 28 MB | 63 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [innoscripta SE](https://appshunter.io/developer/1546207706) | [SAMUEL MORENO CONEJERO](https://appshunter.io/developer/6796264522) |

## What reviewers say

### Clusterix Authenticator

[App page](https://appshunter.io/ios/app/clusterix-authenticator/id6463731666)

**Features:** macOS Compatibility

**In-app purchases:** none


### 2FA iAtomos

[App page](https://appshunter.io/ios/app/2fa-iatomos-authenticator/id6803874033)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Clusterix Authenticator free?

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

### Is 2FA iAtomos free?

2FA iAtomos is free to download, with no in-app purchases.

### Do Clusterix Authenticator or 2FA iAtomos have ads?

Neither Clusterix Authenticator nor 2FA iAtomos shows ads.

### Which is updated more often, Clusterix Authenticator or 2FA iAtomos?

Clusterix Authenticator ships an update every 2 months, and 2FA iAtomos every 8 days. Most recently, Clusterix Authenticator was updated on October 6, 2026 and 2FA iAtomos on October 11, 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.*