# OB Authenticator vs SentooGo

The clearest difference is iOS requirement: OB Authenticator at 12.0 against SentooGo's 17.6. On price, update cadence, 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.

OB Authenticator ships an update every 6 months, SentooGo every 3 months. The most recent releases landed on September 13, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | OB Authenticator | SentooGo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 months** |
| Size | 29 MB | 28 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Orco Bank N.V.](https://appshunter.io/developer/1585350779) | [Sentoo B.V.](https://appshunter.io/developer/1727550136) |

## What reviewers say

### OB Authenticator

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

**Features:** macOS Compatibility

**In-app purchases:** none


### SentooGo

[App page](https://appshunter.io/ios/app/sentoogo/id6748025458)

**In-app purchases:** none


## Frequently asked questions

### Is OB Authenticator free?

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

### Is SentooGo free?

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

### Do OB Authenticator or SentooGo have ads?

Neither OB Authenticator nor SentooGo shows ads.

### Which is updated more often, OB Authenticator or SentooGo?

OB Authenticator ships an update every 6 months, and SentooGo every 3 months. Most recently, OB Authenticator was updated on September 13, 2026 and SentooGo on September 12, 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.*