# Otpkey Authenticator vs 2S Authenticator

The clearest difference is device support: Otpkey Authenticator at 5 against 2S Authenticator's 3. 2S Authenticator's advantage is iOS requirement (11.0 vs 13.0). 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.

## The numbers

| Metric | Otpkey Authenticator | 2S Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 62.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | — |
| Monetization | Free | — |
| Size | 22 MB | 24 MB |
| Requires iOS | 13.0 | **11.0** |
| Devices | **iPhone, iPad, iPod, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Certchip Corp](https://appshunter.io/developer/1652474819) | [2S Info & Media Management GmbH](https://appshunter.io/developer/1167948430) |

## What reviewers say

### Otpkey Authenticator

[App page](https://appshunter.io/ios/app/otpkey-authenticator/id6444123920)

Enhance your online security with multi-factor authentication. This app generates one-time passwords for various services, even offline, and supports standard TOTP/HOTP protocols. It offers features like QR code scanning, auto-hiding codes, and biometric authentication.

**Highlights:** Multi-factor authentication, Offline OTP generation, QR code scanning and export, Biometric authentication support, Clipboard code copying, Widget and Watch App support

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

**In-app purchases:** none


### 2S Authenticator

[App page](https://appshunter.io/ios/app/2s-authenticator/id6466628468)

**In-app purchases:** none


## Frequently asked questions

### Is Otpkey Authenticator free?

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

### Is 2S Authenticator free?

2S Authenticator is free to download, with no in-app purchases.

### Do Otpkey Authenticator or 2S Authenticator have ads?

Neither Otpkey Authenticator nor 2S Authenticator shows ads.

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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.*