# تحويل التاريخ vs مركزي

The clearest difference is in-app purchases: مركزي at none against تحويل التاريخ's 1. تحويل التاريخ's advantage is iOS requirement (12.1 vs 16.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. تحويل التاريخ sells 1 one-off in-app purchase. مركزي asks for nothing beyond the download.

تحويل التاريخ ships an update every 2 months, مركزي monthly. The most recent releases landed on October 23, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | تحويل التاريخ | مركزي |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (328 ratings)](https://appshunter.io/ios/app/id683824799/reviews)** | — |
| Number of ratings | **328** | — |
| Positive reviews | 94.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 66 MB |
| Requires iOS | **12.1** | 16.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Abdulmajeed Alshatri](https://appshunter.io/developer/655194011) | [National Events Center (NEC)](https://appshunter.io/developer/1630958075) |

## What reviewers say

### تحويل التاريخ

[App page](https://appshunter.io/ios/app/id683824799)

This app converts Hijri to Gregorian dates and vice versa, calculates age, and displays astronomical calendars. It also shows daily dates in both Hijri and Gregorian formats, along with zodiac signs. The application works offline for accurate results.

**Highlights:** Hijri to Gregorian date conversion, Gregorian to Hijri date conversion, Age calculation, Astronomical calendars, Salary disbursement dates, Daily Hijri and Gregorian dates, Zodiac signs

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Easy to use and intuitive interface
- ⭐ Accurate date conversion between Hijri and Gregorian calendars
- 🎨 Beautiful and clean design
- 💡 Multiple useful features (time calculation, salary dates, astronomical data)
- 🌙 Comprehensive Hijri calendar support (lunar and solar)

**What reviewers complain about**

- 🐛 App fails to open on main interface
- 🎨 Poor color contrast (white text on white background)
- 💰 Expensive pricing compared to similar apps
- 🌐 Arabic language only
- 📊 Limited date conversion range (only after 1356 Hijri)

**Reported bugs**

- App crashes on main interface
- White text on white background visibility issue
- Hijri date accuracy discrepancies with Um Al-Qura calendar
- Date conversion errors for specific dates
- Conversion limitations for dates before 1356 Hijri

**Requested features**

- Widget support for home screen
- Today's date display without opening app
- Astronomical mansions (Manazil) browsing feature
- Pension/retirement payment dates
- Solar zodiac signs (Abraj) integration


### مركزي

[App page](https://appshunter.io/ios/app/id6449775787)

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

**In-app purchases:** none


## Frequently asked questions

### Is تحويل التاريخ free?

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

### Is مركزي free?

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

### Do تحويل التاريخ or مركزي have ads?

Neither تحويل التاريخ nor مركزي shows ads.

### Which is updated more often, تحويل التاريخ or مركزي?

تحويل التاريخ ships an update every 2 months, and مركزي monthly. Most recently, تحويل التاريخ was updated on October 23, 2026 and مركزي on October 20, 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.*