# Authenticator vs FAX

The clearest difference is rating: Authenticator at 4.3 against FAX's 3.6. FAX's advantage is ads (none vs shown) and update cadence (every 4 months vs every 33 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. Authenticator sells 6 in-app purchases, starting at $6.99 per 7 days and FAX sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Authenticator holds the better App Store score, 4.3 against 3.6. Both are backed by a comparable volume of ratings — 32 and 25 respectively. Written reviews complicate that: 0% of Authenticator's written reviews are positive against 17% of FAX's, so the app with the better star average is not the one people write more warmly about.

Authenticator ships an update every 33 months, FAX every 4 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Authenticator | FAX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (32 ratings)](https://appshunter.io/ios/app/authenticator-secure-2fa-app/id6472184300/reviews)** | [3.6 (25 ratings)](https://appshunter.io/ios/app/fax-easy-mobile-fax-sending/id6479577121/reviews) |
| Number of ratings | **32** | 25 |
| Positive reviews | 0.0% of reviews | **16.7% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 33 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 35 MB | 24 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Piotr Kalita](https://appshunter.io/developer/1759390978) | [saul dik](https://appshunter.io/developer/1807987109) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-secure-2fa-app/id6472184300)

This app provides robust two-factor authentication to secure your online accounts. It offers features like account organization, secure password storage, and cross-device synchronization for enhanced digital identity protection.

**Highlights:** Two-factor authentication (2FA), Account creation via QR code or manual entry, Account organization with folders, Secure password and recovery code storage, Cross-device synchronization and backup, Face ID app lock

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Authenticator: Secure 2FA App | $6.99 | per 7 days |
| 2FA Authenticator: MFA, TOTP | $9.99 | per 7 days |
| Authenticator: Secure 2FA App | $14.99 | per month |
| Authenticator: Secure 2FA App | $15.99 | per month |
| Authenticator: Secure 2FA App | $83.99 | per year |
| Two Factor Verify - Duo Auth | $99.99 | per year |


### FAX

[App page](https://appshunter.io/ios/app/fax-easy-mobile-fax-sending/id6479577121)

Send faxes directly from your iPhone without a physical machine. Scan documents, manage contacts, and securely transmit files like PDFs and images. Offers unlimited faxing with a subscription.

**Highlights:** Send faxes from iPhone, Scan documents with camera, Support for various file types (PDF, images), Contact management, Secure transmission, Unlimited faxing with subscription

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Subscription | $6.99 | per 7 days |
| Monthly Premium Subscription | $14.99 | per month |
| Annually Premium Subscription | $39.99 | per year |


## Frequently asked questions

### Is Authenticator free?

Authenticator is free to download, with in-app purchases available.

### Is FAX free?

FAX is free to download, with in-app purchases available.

### Which has better reviews, Authenticator or FAX?

Authenticator is rated higher. Authenticator averages 4.3 out of 5 from 32 ratings, while FAX averages 3.6 from 25 ratings.

### Do Authenticator or FAX have ads?

Authenticator shows ads; FAX does not.

### Which is updated more often, Authenticator or FAX?

Authenticator ships an update every 33 months, and FAX every 4 months. Most recently, Authenticator was updated on October 24, 2026 and FAX on October 24, 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.*