# SITE Authenticator vs Open Authenticator

The clearest difference is iOS requirement: Open Authenticator at 12.1 against SITE Authenticator's 15.1. On price, review sentiment, 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 | SITE Authenticator | Open Authenticator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/open-authenticator/id1583588049/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | Free |
| Size | 21 MB | 24 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SAUDI INFORMATION TECHNOLOGY COMPANY](https://appshunter.io/developer/1580913824) | [Odroe Inc.](https://appshunter.io/developer/1477720111) |

## What reviewers say

### SITE Authenticator

[App page](https://appshunter.io/ios/app/site-authenticator/id1580913822)

This app provides two-step verification using time-based one-time passwords for TOTP-supported applications. Securely store and access your verification codes after setting a password to lock your tokens. Developed by Saudi Information Technology company engineers.

**Highlights:** Two-step verification, Time-based one-time passwords (TOTP), Password protection for tokens, Scan and store tokens, Developed by SITE engineers

**Features:** macOS Compatibility

**In-app purchases:** none


### Open Authenticator

[App page](https://appshunter.io/ios/app/open-authenticator/id1583588049)

This application generates secure, time-based one-time passwords for authentication. Its open-source code is community-reviewed, ensuring no backdoors and consistent TOTP compliance for robust security.

**Highlights:** HMAC-based One-time Password generation, TOTP compliance, Completely open-source code, Community supervised, No backdoor security

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SITE Authenticator free?

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

### Is Open Authenticator free?

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

### Do SITE Authenticator or Open Authenticator have ads?

Neither SITE Authenticator nor Open 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.*