# Weather Calc vs Lunar Eclipse

The clearest difference is review sentiment: Weather Calc at 86% against Lunar Eclipse's 0%. Weather Calc also leads on rating (4.5 vs 2.5). Lunar Eclipse's advantage is update cadence (every 6 months vs every 32 months) and iOS requirement (9.0 vs 15.6). On price, ratings volume, ads and in-app purchases there is nothing between them.

Weather Calc costs $0.99 and Lunar Eclipse $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Weather Calc holds the better App Store score, 4.5 against 2.5. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 86% of Weather Calc's written reviews are positive against 0% of Lunar Eclipse's.

Weather Calc ships an update every 32 months, Lunar Eclipse every 6 months. The most recent releases landed on September 14, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Weather Calc | Lunar Eclipse |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/weather-calc/id305762968/reviews)** | [2.5 (4 ratings)](https://appshunter.io/ios/app/lunar-eclipse/id687327914/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | **85.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 32 months | **Every 6 months** |
| Monetization | Paid | Paid |
| Best chart rank | **#177** | #185 |
| Size | 4 MB | 4 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Black Cat Systems](https://appshunter.io/developer/301047032) | [Piet Jonas](https://appshunter.io/developer/288060167) |

## What reviewers say

### Weather Calc

[App page](https://appshunter.io/ios/app/weather-calc/id305762968)

**Currently charting:** #177 Top Paid · Weather (US App Store)

This app provides pilots and weather enthusiasts with a comprehensive tool for performing various weather-related calculations. It offers conversions and computations for atmospheric pressure, temperature, humidity, wind speed, and more.

**Highlights:** Altimeter setting calculation, Heat index computation, Pressure unit conversion, Relative humidity calculation, Speed of sound display, Wind chill computation, Wind speed conversion

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

**In-app purchases:** none


### Lunar Eclipse

[App page](https://appshunter.io/ios/app/lunar-eclipse/id687327914)

**Currently charting:** #185 Top Paid · Weather (US App Store)

Track upcoming lunar eclipses with this app. Choose to view total, partial, or both types of events. Easily add eclipse dates to your calendar and share them with others.

**Highlights:** Countdown to lunar eclipses, Filter by total or partial eclipses, Add events to calendar, Share event dates, iPad multitasking support

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

**In-app purchases:** none


## Frequently asked questions

### Is Weather Calc free?

Weather Calc costs $0.99, with no in-app purchases.

### Is Lunar Eclipse free?

Lunar Eclipse costs $0.99, with no in-app purchases.

### Which has better reviews, Weather Calc or Lunar Eclipse?

Weather Calc is rated higher. Weather Calc averages 4.5 out of 5 from 4 ratings, while Lunar Eclipse averages 2.5 from 4 ratings.

### Do Weather Calc or Lunar Eclipse have ads?

Neither Weather Calc nor Lunar Eclipse shows ads.

### Which is updated more often, Weather Calc or Lunar Eclipse?

Weather Calc ships an update every 32 months, and Lunar Eclipse every 6 months. Most recently, Weather Calc was updated on September 14, 2026 and Lunar Eclipse on September 21, 2026.

### Which is more popular, Weather Calc or Lunar Eclipse?

Weather Calc currently peaks at #177 in the App Store charts, and Lunar Eclipse at #185. Chart position reflects recent download velocity rather than total install base.

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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.*