# Sun n Moon vs Thunderstorm Calculator

The clearest difference is rating: Sun n Moon at 5.0 against Thunderstorm Calculator's 3.0. Sun n Moon also leads on update cadence (every 5 weeks vs every 33 months) and iOS requirement (8.2 vs 15.6). Thunderstorm Calculator's advantage is device support (4 vs 2). On price, ratings volume, ads and in-app purchases there is nothing between them.

Sun n Moon costs $0.99 and Thunderstorm Calculator $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sun n Moon holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 8 and 3 respectively.

Sun n Moon ships an update every 5 weeks, Thunderstorm Calculator every 33 months. The most recent releases landed on October 27, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Sun n Moon | Thunderstorm Calculator |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/sun-n-moon/id294937581/reviews)** | [3.0 (3 ratings)](https://appshunter.io/ios/app/thunderstorm-calculator/id389042852/reviews) |
| Number of ratings | **8** | 3 |
| Positive reviews | 59.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 33 months |
| Monetization | Paid | Paid |
| Best chart rank | **#87** | #154 |
| Size | 8 MB | 18 MB |
| Requires iOS | **8.2** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Catalyst4](https://appshunter.io/developer/294937584) | [Piet Jonas](https://appshunter.io/developer/288060167) |

## What reviewers say

### Sun n Moon

[App page](https://appshunter.io/ios/app/sun-n-moon/id294937581)

**Currently charting:** #87 Top Paid · Weather (US App Store)

This app provides precise sunrise, sunset, moonrise, and moonset times for any location on Earth. It features a compass showing celestial body positions, moon phase animations, and detailed astronomical data. Access information for past and future dates, with offline capabilities.

**Highlights:** Sunrise and sunset times, Moonrise and moonset times, Moon phases animation, Compass showing sun and moon positions, Location by GPS, city list, lat/lon, or Google Maps, Accurate times (NOAA standard) offline

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Simple and easy to use
- 🌟 Well-designed interface
- 🎯 Accurate sun and moon information
- 📸 Great for photographers
- 📍 Automatic location detection

**What reviewers complain about**

- 📉 Lack of recent updates
- 🐛 Inaccurate data reported
- ⏳ Outdated for new OS
- 🖱️ Inconvenient navigation
- 🏙️ Limited city list

**Reported bugs**

- App crashes after updates
- Inaccurate time zone data
- Autolocate bug with time zone offset
- App not opening after upgrade
- Location not saving correctly

**Requested features**

- Add Apple Watch compass view
- Save multiple locations
- Add civil twilight information
- Improve interface aesthetics
- Add AM/PM display options


### Thunderstorm Calculator

[App page](https://appshunter.io/ios/app/thunderstorm-calculator/id389042852)

**Currently charting:** #154 Top Paid · Weather (US App Store)

Measure the distance to a thunderstorm by timing the interval between lightning and thunder. View your storm history to track its movement and toggle between metric and imperial units.

**Highlights:** Lightning and thunder timing, Distance calculation, Metric and imperial units, Storm history tracking, Apple Watch support

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Sun n Moon free?

Sun n Moon costs $0.99, with no in-app purchases.

### Is Thunderstorm Calculator free?

Thunderstorm Calculator costs $0.99, with no in-app purchases.

### Which has better reviews, Sun n Moon or Thunderstorm Calculator?

Sun n Moon is rated higher. Sun n Moon averages 5.0 out of 5 from 8 ratings, while Thunderstorm Calculator averages 3.0 from 3 ratings.

### Do Sun n Moon or Thunderstorm Calculator have ads?

Neither Sun n Moon nor Thunderstorm Calculator shows ads.

### Which is updated more often, Sun n Moon or Thunderstorm Calculator?

Sun n Moon ships an update every 5 weeks, and Thunderstorm Calculator every 33 months. Most recently, Sun n Moon was updated on October 27, 2026 and Thunderstorm Calculator on October 26, 2026.

### Which is more popular, Sun n Moon or Thunderstorm Calculator?

Sun n Moon currently peaks at #87 in the App Store charts, and Thunderstorm Calculator at #154. Chart position reflects recent download velocity rather than total install base.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*