# OTP Authenticator vs OETH

The clearest difference is iOS requirement: OTP Authenticator at 7.0 against OETH's 13.0. 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.

OTP Authenticator ships an update every 5 months, OETH every 3 months. The most recent releases landed on September 20, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | OTP Authenticator | OETH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 months** |
| Size | 16 MB | 25 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Swiss SafeLab GmbH](https://appshunter.io/developer/915359213) | [WebComm Technology Co., Ltd.](https://appshunter.io/developer/724381640) |

## What reviewers say

### OTP Authenticator

[App page](https://appshunter.io/ios/app/otp-authenticator/id915359210)

**Features:** macOS Compatibility

**In-app purchases:** none


### OETH

[App page](https://appshunter.io/ios/app/oeth/id1597058287)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OTP Authenticator free?

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

### Is OETH free?

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

### Do OTP Authenticator or OETH have ads?

Neither OTP Authenticator nor OETH shows ads.

### Which is updated more often, OTP Authenticator or OETH?

OTP Authenticator ships an update every 5 months, and OETH every 3 months. Most recently, OTP Authenticator was updated on September 20, 2026 and OETH on October 6, 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.*