# EZ Lunars — ezLunarsOne

> Celestial navigation tool with pre-computed lunar distance tables and guidance. (iPhone/iPad app by EZ Celestial LLC.)

- Source: https://appshunter.io/ios/app/ez-lunars/id1607908384 (this page in markdown: same URL + `.md`)
- Developer: [EZ Celestial LLC](https://appshunter.io/developer/504153123)
- Category: Navigation, Education
- Price: $24.99
- Rating: 5.00/5 from 1 App Store ratings · 1 written reviews indexed
- Age rating: +4
- Requires: iOS 13.0 · 141 MB
- Released: 2022-02-02
- Data updated: 2026-09-06
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/ez-lunars/id1607908384/reviews.md

## What is EZ Lunars?

Lunars are easy when you have the pre-computed lunar distance tables! 

Learn to do lunars as they were done when the pre-computed lunar distances were published in the Nautical Almanac over 100 years ago (last published in 1906).

The ezLunarsOne lunar distance tables contain the lunar distances of up to 6 navigational bodies each day at 3-hour intervals. Each distance also has a proportional logarithm value to help interpolate the cleared distance to a time between the 3-hour values. A proportional logarithm table, moon augmented semidiameter, and second differences table are also included. Everything you need to perform lunars with a pencil and paper just like the ancient navigators!

Most users, however, will let the app do all of the work. ezLunarsOne includes functions to guide you through the process of planning your lunar, making the observations and using the tables to compute Greenwich time.
 
When your lunar is cleared, the solution can be output to a lunar clearing form just like you would do by hand.  When you are ready to do lunars by hand, the lunar distance tables and blank clearing forms can be sent to a printer or PDF file for use outside the app.

Since the lunar solution also requires data from the Nautical Almanac, the full Nautical Almanac from ezAlmanacOne is provided in the app. 

ezLunarsOne performs all astronomical calculations using the NOVAS 3.1 software from the US Naval Observatory (USNO) and a JPL ephemeris that covers the years 1960 through 2059.  Since all calculations are performed in the software, ezLunarsOne is fully functional with no dependency on a data connection from your device.

## Key features

- Pre-computed lunar distance tables
- Proportional logarithm values for interpolation
- Guidance for planning and making observations
- Lunar clearing form output
- Includes Nautical Almanac data
- Offline functionality

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/ez-lunars/id1607908384/reviews.md

### 5/5 — Time saver

*2024-06-16*

I have been using the EZ Celestial Navigation app for some time and have decided try out the EZ Lunars.  I do most of my calculations by hand and I use the app as I go along to check my work.  It really saves a lot of time to catch my errors early instead of having to completely restart.  I appreciate the logical sequence in the app that mirrors doing this on paper.

## Frequently asked questions about EZ Lunars

### How does EZ Lunars help with celestial navigation?

EZ Lunars provides pre-computed lunar distance tables and step-by-step guidance to help users perform celestial navigation calculations, specifically focusing on the historical method of lunars.

### What historical navigation methods does EZ Lunars support?

EZ Lunars supports performing lunars using methods that were published in the Nautical Almanac over 100 years ago, with the last publication in 1906. It includes all necessary tables and functions for this process.

### Can I use EZ Lunars without an internet connection?

Yes, EZ Lunars is fully functional offline. All astronomical calculations are performed within the software using the NOVAS 3.1 software and a JPL ephemeris, so no data connection is required.

### What devices is EZ Lunars compatible with?

EZ Lunars is available for iPhone, iPad, and iPod devices, supporting iOS.

### How often is EZ Lunars updated?

The latest version of EZ Lunars is 1.3, and it was last updated on October 8, 2024. Updates typically include improvements and bug fixes.

### What is the price of EZ Lunars?

EZ Lunars is a paid application, priced at $24.99. This one-time purchase grants access to all its features.

### Does EZ Lunars have ads?

No, EZ Lunars does not contain advertisements. It is a paid application designed to provide an uninterrupted user experience.

### What age rating is EZ Lunars suitable for?

EZ Lunars has an age rating of 4+, making it suitable for a wide range of users interested in the subject matter.

## Version history (last 5 releases)

### 1.3 — 2024-10-08

Minor bug fix.

### 1.2 — 2024-10-01

Periodic maintenance.

### 1.1.16 — 2023-12-13

Minor internal changes.

### 1.1.15 — 2023-10-13

Minor internal changes.

### 1.1.14 — 2023-09-15

Minor internal updates.

## Apps similar to EZ Lunars

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Celestial Nav](https://appshunter.io/ios/app/celestial-nav/id1569880598) | 4.3 (10) | Free | Navigation |
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| [Nautical Calculator Pro](https://appshunter.io/ios/app/nautical-calculator-pro/id1532372625) | 5.0 (1) | $14.99 | Navigation |
| [Tide Prediction](https://appshunter.io/ios/app/tide-prediction/id376336769) | — | Free | Navigation |
| [Navathome.com](https://appshunter.io/ios/app/navathomecom/id6473771049) | — | Free | Navigation |
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## More apps by EZ Celestial LLC

- [EZ Celestial Navigation](https://appshunter.io/ios/app/ez-celestial-navigation/id1547239240)
- [EZ Nautical Almanac](https://appshunter.io/ios/app/ez-nautical-almanac/id6468887411)

All apps by EZ Celestial LLC: https://appshunter.io/developer/504153123

## Related topics

[ez sextant](https://appshunter.io/ios/topics/ez-sextant)

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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 2026-09-06.*