# OB Authenticator vs Merpol Mobile

The clearest difference is update cadence: Merpol Mobile at every 3 days against OB Authenticator's every 6 months. OB Authenticator's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

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

OB Authenticator ships an update every 6 months, Merpol Mobile every 3 days. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OB Authenticator | Merpol Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 days** |
| Size | 29 MB | 18 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Orco Bank N.V.](https://appshunter.io/developer/1585350779) | [Merpol Travel Technologies LLC](https://appshunter.io/developer/6808608498) |

## What reviewers say

### OB Authenticator

[App page](https://appshunter.io/ios/app/ob-authenticator/id6736407812)

**Features:** macOS Compatibility

**In-app purchases:** none


### Merpol Mobile

[App page](https://appshunter.io/ios/app/merpol-mobile/id6808608496)

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

**In-app purchases:** none


## Frequently asked questions

### Is OB Authenticator free?

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

### Is Merpol Mobile free?

Merpol Mobile is free to download, with no in-app purchases.

### Do OB Authenticator or Merpol Mobile have ads?

Neither OB Authenticator nor Merpol Mobile shows ads.

### Which is updated more often, OB Authenticator or Merpol Mobile?

OB Authenticator ships an update every 6 months, and Merpol Mobile every 3 days. Most recently, OB Authenticator was updated on October 27, 2026 and Merpol Mobile on October 29, 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.*