# Luach — Women's Halachic Calendar

> Halachic and Zmanim calendar for Jewish women, with event management and customizable calculations. (iPhone/iPad app by Chaim Sommers.)

- Source: https://appshunter.io/ios/app/luach/id1259500420 (this page in markdown: same URL + `.md`)
- Developer: [Chaim Sommers](https://appshunter.io/developer/1259500419)
- Category: Utilities, Lifestyle
- Price: Free
- Rating: 4.50/5 from 11 App Store ratings · 3 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 8 MB
- Languages: American English
- Released: 2017-07-18
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/luach/id1259500420/reviews.md

## What is Luach?

A full-featured Halachic monthly calendar application for the Jewish woman.

It helps a Jewish wife or Kallah keep track of her personal dates, patterns, prohibition times, Mikvah scheduling, and everything else that need to be observed for the laws of Niddah.

Luach shows when a "Hefsek Tahara" can be done, the Mikvah can be attended, and keeps track of the seven days of purity, "the Shiva Neki'im".

Luach can schedule system reminder notifications for Hefsek Tarahas, Bedikahs, Mikvah and problematic dates that need to be observed.

Luach does a full Halachic analysis of all the information, and is able to automatically calculate patterns ("Vesset Kavuah") and any problematic dates that need to be observed.

Many Halachic opinions are accommodated, and all the Halachic specifications that Luach uses for its calculations can be fully customized.

Luach also functions as a Zmanim calendar, and includes a full set of daily Zmanim for anywhere in the world. This includes candle-lighting times, sedra of the week, all holidays and fasts, Zman Kriat Shma, and many, many others.

It also includes an event and occasion manager to keep track of birthdays, Yahrtzeits, special dates and appointments etc.

Luach stores all its information locally on your device and does not transmit this information to anyone.
The private information that you enter into Luach can also be protected with a PIN number. The PIN can be set from the Settings Screen.

Luach comes with a built in help system which explains in detail all it's features and Halachic specifications.
You can view Luach's comprehensive documentation online at  https://www.compute.co.il/luach/app/.

We would GREATLY appreciate feedback about any issues you encounter or about how you feel that we can improve Luach.
We can be contacted at luach@compute.co.il or at 732-707-7307.

Luach's source code is open source, and can be accessed at https://github.com/cbsom/LuachAndroid.

## Key features

- Personal Halachic date tracking
- Mikvah scheduling and purity day management
- Automatic pattern and problematic date calculation
- Customizable Halachic specifications
- Global Zmanim calendar
- Event and occasion manager
- PIN protection for private data

## Recent user reviews (3 of 3)

All indexed reviews: https://appshunter.io/ios/app/luach/id1259500420/reviews.md

### 1/5 — Wrong dates

*2020-12-03, version 1.69*

Chanukah dates are wrong. This luach has 1st candle on 11 December instead of 10 December

### 5/5 — Fantastic

*2020-09-16, version 1.69*

Absolutely fantastic. Straight to Gan Eden.

### 2/5 — Date issue

*2018-02-18*

This app is totally unreliable and must be immediately redone! Non Hebrew or Civil dates are shown correctly! What’s going on? Why on earth civil date changes after darkness and Hebrew at 12am??? Today is Sunday Feb 18. Calendar shows tomorrow is Tuesday Feb 20!!! Where is Feb 19???? What are you smoking there guys???

**Developer response:** The particular issue that you encountered has been corrected over 2 years ago.
The app is being used by many people all over the world for a long time and is considered reliable

## Frequently asked questions about Luach

### What is Luach?

Luach is a full-featured Halachic monthly calendar application designed for Jewish women to track personal dates, Niddah laws, Mikvah scheduling, and other religious observances.

### Does Luach have ads?

No, Luach is ad-free. It does not contain advertisements, providing an uninterrupted user experience.

### What devices does Luach support?

Luach is available for iPhone and iPad devices. It is designed to function on Apple's iOS platform.

### How does Luach calculate patterns?

Luach performs a full Halachic analysis of entered information to automatically calculate patterns (Vesset Kavuah) and any problematic dates that need to be observed, with customizable specifications.

### Is my data private with Luach?

Yes, Luach stores all information locally on your device and does not transmit it. You can also protect your private information with a PIN number.

### When was Luach last updated?

Luach was last updated on May 20, 2019, with version 1.69. The app was initially released on July 18, 2017.

### What is the age rating for Luach?

Luach has an age rating of 4+, making it suitable for a wide range of users.

### Can I get help with Luach's features?

Yes, Luach includes a built-in help system that explains its features and Halachic specifications in detail. Comprehensive documentation is also available online.

## Version history (last 5 releases)

### 1.69 — 2019-05-20

* Added system notification reminders. Reminders can be added for Hefsek Tahara, Bedikahs, Mikvah and "flagged dates".
* Upon first launch, the app now tries to do an educated guess as to the correct halachic location location based on the device time zone name. 
* Fixed issue with help files navigation
* Fixed issue with incorrect Sedra of the week in Chutz La'aretz.
* When the Torah portion is that of Yom tov, the sedra of the week is no longer shown.
* Removed location from Home Screen.
* Changed default initial location from Jerusalem to Lakewood NJ
* Upgraded the find location results list
* Removed the auto-focus from find location search text box
* Fixed the zman of magen avraham
* Fixed some issues where halachic sunset can be after after 12 midnight.
* Expanded the options for candle lighting times for new locations.
* Enhanced the ability to add, remove and edit existing locations.

### 1.59 — 2018-03-16

* Added the ability to add and edit the locations list.
* Enhanced performance.

### 1.56 — 2018-02-18

* Fixed issues with date navigation in Month View Screen.
* Added version number to Log-in screen.
* Optimized  date conversion.
* Fixed incorrect titles in Month View.

### 1.53 — 2018-02-13

* Bug fix: Fixed bug where incorrect Secular dates were being shown.
* More descriptive header for Month View
* Added exporting a full month of Zmanim.
* Fixed issue with incorrect Baha"b dates for years when Rosh Chodesh was Friday-Shabbos.

### 1.40 — 2017-12-04

* Export Zmanim data. Export all the Zmanim for any day.  
* Export a full month of Zmanim information.
* Upon adding a new Entry, Luach now looks for broken, awakened and out of pattern Kavuahs.
* Changed default Netz to Netz of "mishor".
* Fixed incorrect Baha"b dates.
* Enhanced calculations for Dilug Yom HacHodesh Kavuahs.
* Changing the "breaking" of Yom Hachodesh Kavuahs to be truly by "theoretical" dates.
* New calculations for prospective dates of Entry independent Kavuah types.
* Fixed issue with Kavuah Haflaga flagged dates when seting entry has no listed haflaga.

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*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 2026-06-01.*
