# TOTP Authenticator vs Authenticator App 2FA

The clearest difference is ads: TOTP Authenticator at none against Authenticator App 2FA's shown. Authenticator App 2FA's advantage is iOS requirement (16.0 vs 26.2). On price, 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.

## The numbers

| Metric | TOTP Authenticator | Authenticator App 2FA |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 weeks |
| Size | 3 MB | 22 MB |
| Requires iOS | 26.2 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Keita Iwasaki](https://appshunter.io/developer/1660454950) | [Luriven](https://appshunter.io/developer/6796618489) |

## What reviewers say

### TOTP Authenticator

[App page](https://appshunter.io/ios/app/totp-authenticator-2fa-otp/id6760251412)

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

**In-app purchases:** none


### Authenticator App 2FA

[App page](https://appshunter.io/ios/app/authenticator-app-2fa/id6796618487)

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

**In-app purchases:** none


## Frequently asked questions

### Is TOTP Authenticator free?

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

### Is Authenticator App 2FA free?

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

### Do TOTP Authenticator or Authenticator App 2FA have ads?

Authenticator App 2FA shows ads; TOTP Authenticator does not.

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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.*