# Authenticator vs Hijri Calendar

The clearest difference is in-app purchases: Hijri Calendar at none against Authenticator's 3. Hijri Calendar also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17). Authenticator's advantage is ads (none vs shown). On price there is nothing between them.

Both are free to download. Authenticator sells 3 in-app purchases, starting at $7.99 per 7 days. Hijri Calendar asks for nothing beyond the download.

## The numbers

| Metric | Authenticator | Hijri Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | — |
| Size | 13 MB | 40 MB |
| Requires iOS | 17 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [General Trading OU](https://appshunter.io/developer/1891750689) | [KIEU NGUYEN](https://appshunter.io/developer/1737999404) |

## What reviewers say

### Authenticator

[App page](https://appshunter.io/ios/app/authenticator-2fa-and-mfa/id6761847431)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Week | $7.99 | per 7 days |
| Premium Week | $8.99 | per 7 days |
| Premium Year | $29.99 | per year |


### Hijri Calendar

[App page](https://appshunter.io/ios/app/hijri-calendar-islamic-dates/id6801506418)

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

**In-app purchases:** none


## Frequently asked questions

### Is Authenticator free?

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

### Is Hijri Calendar free?

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

### Do Authenticator or Hijri Calendar have ads?

Hijri Calendar shows ads; 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.*