Sun n Moon vs Thunderstorm Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sun n Moon
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.
- 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
Read full descriptionHide full description
Sun n Moon accurately calculates data for any location on earth for: - Sunrise/Sunset - Moonrise/Moonset - Moon phases animation - Compass showing sun and moon positions **Now on Apple WATCH *** WATCH a VIDEO demo at our site *** http://www.catalyst4.com/sun_n_moon Key Features • Sunrise and sunset times (no network connection required) • Moonrise and moonset times • Specify location by 4 methods: 1) GPS or location services 2) Choose from a list of cities worldwide 3) Latitude and longitude 4) Google Maps • Phase of the Moon/Percentage Illumination • Compass view for navigation showing position of sun and moon (slider animates the position and elevation for different times of the day) • Save a location (startup to the saved location or automatically find current location) • Select any date. Quickly switch between dates using arrows or return to current date. • Easy to read display (in 24 hour or am/pm format) • Handles time zones and daylight savings time • Shows past/future dates for northern/southern extremes when sun is down/up all day • Accurate times (NOAA standard) calculated right on the device (network connection not required) • Details view - time of solar noon, current altitude and elevation for sun and moon
Thunderstorm Calculator
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.
- Lightning and thunder timing
- Distance calculation
- Metric and imperial units
- Storm history tracking
- Apple Watch support
Read full descriptionHide full description
This application calculates the distance of a thunder storm by measuring the time between a lightning and the corresponding thunder. How to use: - When you see the lightning press the 'Lightning' button. - Wait until you hear the thunder and press the 'Thunder' button. - Tap the distance to toggle between metric and imperial units. - With the help of the history list you can see whether the storm comes closer and moves away. Background: The speed of light is much faster than the speed of sound. By measuring the time between the lightning and corresponding thunder one can easily approach the distance by multiplying the duration with the speed of sound. Apple Watch version: - distance calculation - history list - metric and imperial units - has a Check for a quick start
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Sun n Moon | Thunderstorm Calculator |
|---|---|---|
| Price | $0.99 | $0.99 |
| Rating | 5.0 (8 ratings) — better | 3.0 (3 ratings) |
| Positive reviews | 59.2% of reviews | — |
| Number of ratings | 8 — better | 3 |
| Update frequency | Every 5 weeks — better | Every 33 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Best chart rank | #86 — better | #153 |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Apple Watch — better |
| Requires iOS | 8.2 — better | 15.6 |
| Further details — not scored | ||
| Size | 8 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Catalyst4 | Piet Jonas |
Customer experience
Sun n Moon
Thunderstorm Calculator
Bugs and requests
Sun n Moon
Reported bugs
9 issues- App crashes after updates
- Inaccurate time zone data
- Autolocate bug with time zone offset
- App not opening after upgrade
- Location not saving correctly
Show 4 moreShow fewer
- Crashes with iOS 4
- Black boxed text in settings
- Autolocate feature issues
- Daylight saving not saving
Requested features
10 requests- Add Apple Watch compass view
- Save multiple locations
- Add civil twilight information
- Improve interface aesthetics
- Add AM/PM display options
Show 5 moreShow fewer
- Display moon phases visually
- Add zip code entry for location
- Allow saving date ranges
- Add place names instead of coordinates
- Customizable calendar view
Thunderstorm Calculator
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Sun n Moon
No in-app purchases
Thunderstorm Calculator
No in-app purchases
Questions
Is Sun n Moon free?
Is Thunderstorm Calculator free?
Which has better reviews, Sun n Moon or Thunderstorm Calculator?
Do Sun n Moon or Thunderstorm Calculator have ads?
Which is updated more often, Sun n Moon or Thunderstorm Calculator?
Which is more popular, Sun n Moon or Thunderstorm Calculator?
Other comparisons
