# Hilal Astro — Crescent Moon Calculator

> Offline Islamic astronomy calculator for crescent moon visibility and celestial body tracking. (iPhone/iPad app by Suliman abdullah.)

- Source: https://appshunter.io/ios/app/hilal-astro/id6760419631 (this page in markdown: same URL + `.md`)
- Developer: [Suliman abdullah](https://appshunter.io/developer/1878690148)
- Category: Weather, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 29 MB
- Languages: American English, Arabic, Hausa, Indonesian, Malay, Urdu
- Released: 2026-03-12
- Data updated: 2026-08-17
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/hilal-astro/id6760419631/reviews.md

## What is Hilal Astro?

Hilal Astro — an offline-first Islamic astronomy calculator for crescent moon visibility, built on three internationally recognized criteria:

• Yallop (1998)
• Odeh (2006)
• MABIMS (2021)

FEATURES

◆ Crescent Visibility
Pick a city, use GPS, or enter custom coordinates. Get an instant verdict with illumination percentage and a visual crescent diagram.

◆ Detailed Astronomical Data
Moon altitude, azimuth, elongation, crescent age, lag time, and relative altitude after sunset with charts.

◆ Moon Phases
View all four lunar phases for any month: New, First Quarter, Full, and Last Quarter — with precise timing.

◆ Planet Positions
Track the seven visible planets — Mercury, Venus, Mars, Jupiter, Saturn, Uranus, Neptune — with altitude, azimuth, and distance.

◆ AR Sky View
Hold your phone up and see planets, stars, and Messier objects overlaid on the live camera view in their real positions. Magnetic declination corrected via IGRF-14.

◆ Compare Cities
Compare crescent visibility across multiple cities simultaneously.

◆ 42 Cities Supported
Mecca, Medina, Riyadh, Cairo, Jakarta, Kuala Lumpur, Karachi, Sokoto, New York, Istanbul, and many more.

◆ 6 Languages
Arabic, English, Indonesian, Malay, Urdu, Hausa.

◆ Share Results
Share calculation results as an image with family and friends.

No ads, no internet, no sign-up. Your privacy is preserved.

The app is an astronomical aid — final moon-sighting decisions remain with the authorized committee in your country.

## Key features

- Crescent moon visibility calculation
- Detailed astronomical data
- Moon phase tracking
- Planet position tracking
- Augmented reality sky view
- Multi-city comparison
- Offline functionality


## Frequently asked questions about Hilal Astro

### What is Hilal Astro used for?

Hilal Astro is an offline-first Islamic astronomy calculator designed to determine crescent moon visibility based on internationally recognized criteria. It also provides detailed astronomical data for celestial bodies.

### Does Hilal Astro require an internet connection?

No, Hilal Astro is an offline-first application and does not require an internet connection to function. This ensures privacy and accessibility without data usage.

### What astronomical criteria does Hilal Astro use?

Hilal Astro utilizes three internationally recognized criteria for crescent moon visibility: Yallop (1998), Odeh (2006), and MABIMS (2021).

### What kind of astronomical data does Hilal Astro provide?

It offers data such as moon altitude, azimuth, elongation, crescent age, lag time, and relative altitude after sunset, along with charts. It also tracks the seven visible planets.

### Does Hilal Astro have ads?

Yes, Hilal Astro contains advertisements. The app is free to use, and advertisements are displayed to support its development.

### What devices is Hilal Astro available on?

Hilal Astro is available on iPhone and iPad devices. It is designed for iOS users.

### How often is Hilal Astro updated?

The latest version, 2.5.1, was released on May 14, 2026. Updates are released periodically to improve functionality and accuracy.

### What languages does Hilal Astro support?

Hilal Astro supports six languages: Arabic, English, Indonesian, Malay, Urdu, and Hausa, making it accessible to a global audience.

## Version history (last 5 releases)

### 2.5.1 — 2026-05-14

Version 2.5.1

• Improved crescent calculation accuracy across all three criteria (Yallop, Odeh, MABIMS)
• Fixed conjunction time for users in Indonesia, Malaysia, and Pacific regions
• Cleaner fonts for Latin-script languages (English, Indonesian, Malay, Hausa)
• Resolved sharing issue on some devices
• Shared reports now include app links

### 2.5.0 — 2026-05-13

Version 2.5 — major update:

• 6 languages supported: Arabic, English, Indonesian, Malay, Urdu, Hausa.
• New AR Sky View — see planets, stars, and Messier objects overlaid on your live camera in their actual positions.
• MABIMS criterion updated to 2021 spec (dropped 8-hour age requirement).
• Added Uranus and Neptune to planet tracking.
• 14 new cities (Nigeria, Malaysia, USA).
• Portrait layout fixes, status bar improvements, better RTL support.
• Precise IGRF-14 magnetic declination for accurate sky orientation.
• AR performance gains and reduced battery use.

### 2.4.1 — 2026-05-07

جديد في هذه النسخة:

- خريطة السماء بالواقع المعزز (AR): وجّه كاميرا جوالك للسماء واكتشف الكواكب والنجوم في الوقت الحقيقي
- بحث متقدم في 144 مدينة (كان 28 مدينة)
- تنبيه ذكي لمعايرة البوصلة عند فتح خريطة السماء
- شاشة افتتاح خاصة وأيقونة محسّنة
- تحسينات شاملة لإمكانية الوصول (دعم قارئ الشاشة، أيقونات لمستخدمي عمى الألوان)
- خطوط أكبر وتجربة استخدام أفضل
- إصلاح أخطاء وتحسين الاستقرار

### 2.4.0 — 2026-05-06

جديد في هذه النسخة:

- خريطة السماء AR: وجّه كاميرا جوالك للسماء واكتشف الكواكب والنجوم في الوقت الحقيقي
- بحث متقدم في 144 مدينة (كان 28 مدينة)
- شاشة افتتاح خاصة وأيقونة محسّنة
- تحسينات شاملة لإمكانية الوصول
- خطوط أكبر وتجربة استخدام أفضل
- إصلاح أخطاء وتحسين الاستقرار

### 1.1.0 — 2026-04-09

إصلاح شامل لواجهة المستخدم وتحسين التوافق مع جميع الأجهزة
تحسين ألوان التطبيق وتباين النصوص لسهولة القراءة
إضافة حالة تحميل لجميع أزرار الحساب
إضافة زر "حاول مجدداً" عند حدوث أخطاء
حفظ حالة التبويبات عند التنقل بينها
إضافة حقل الارتفاع في وضع الإحداثيات المخصصة
ترتيب المدن المفضلة أولاً في شاشة المقارنة
تحسين شاشة التقويم القمري
اتجاهات البوصلة بالعربي
تحسينات في الأداء والاستقرار

## Apps similar to Hilal Astro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Gubaar](https://appshunter.io/ios/app/gubaar/id6746223707) | — | Free | Weather |
| [Moon Calendar — Lunar Phases](https://appshunter.io/ios/app/moon-calendar-lunar-phases/id6754588656) | 5.0 (2) | Free | Weather |
| [الطوالع النجدية](https://appshunter.io/ios/app/id6748673378) | — | Free | Weather |
| [Moon_Phase](https://appshunter.io/ios/app/moon-phase/id562061111) | 3.0 (1) | Free | Weather |
| [Ice Map: Sailing Forecast](https://appshunter.io/ios/app/ice-map-sailing-forecast/id6753895292) | 1.0 (1) | Free | Weather |
| [Moon Phase: Lunar Calendar App](https://appshunter.io/ios/app/moon-phase-lunar-calendar-app/id6760210719) | — | Free | Weather |

## More apps by Suliman abdullah

- [Dhahabi: Gold, Silver & Zakat](https://appshunter.io/ios/app/dhahabi-gold-silver-and-zakat/id6759472536)
- [رحلتي - رحلات السعودية](https://appshunter.io/ios/app/id6760371846)
- [مصروفي - ميزانية ومصاريف وزكاة](https://appshunter.io/ios/app/id6761153639)
- [المعدل والنسبة الموزونة](https://appshunter.io/ios/app/id6761237854)

All apps by Suliman abdullah: https://appshunter.io/developer/1878690148

---

*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*