Weather Calc

Black Cat Systems · Weather

4.3 3 ratings $0.99

Independent analytics for this App Store listing. AppTracker is not affiliated with Black Cat Systems.

View on App Store ↗

Chart standing · US

Top Paid Weather
#80
Best #26 ▼ 54

What changed · US

Listing changes AppTracker has observed for this app in this storefront — new versions, price moves, rating shifts, and store copy.

Oct 11, 2026
Rating ★ 4.5 → 4.33

Ratings breakdown · US

The star breakdown behind this app's rating in this storefront.

5★ 50% 2
4★ 50% 2
3★ 0% 0
2★ 0% 0
1★ 0% 0

In-app purchases · US

No in-app purchases.

Screenshots

Similar apps

Competitors and close alternatives, as estimated by AppTracker.

About

If you’re a pilot, you often need to make lots of weather related calculations. Now there’s an easy solution, as close as your iPhone. Weather Calc performs the following weather relation calculations: Altimeter Setting - compute the altimeter setting based on elevation and station pressure Cricket Temperature - just for fun! This lets you estimate the temperature based on the chirp rate of a cricket Heat Index - compute the heat index based on the temperature and relative humidity Pressure - convert between hPa, atmospheres, psi, and inches and mm of mercury (Hg) Relative Humidity - compute the wet bulb and dewpoint based on the temperature, pressure, and relative humidity Speed Of Sound - displays the speed of sound in various units, given the temperature Standard Atmosphere - compute the temperature, pressure, density, viscosity, speed of sound, and more Station Pressure - compute the station pressure based on the elevation and altimeter setting. Temperature - convert between degrees Fahrenheit, Celsius, Kelvin, and Rankine Virtual Temperature - compute the virtual temperature based on the temperature, dewpoint, and pressure Vapor Pressure - com[ute the saturated and actual vapor pressure, as well as relative humidity Wet Bulb - compute the dewpoint and relative humidity based on the temperature, pressure, and wet bulb reading Wind Chill - compute the wind chill based on the temperature and wind speed Wind Speed - convert between knots, kilometers/hour, meters/second, miles/hour, feet/second Buy your copy now, and let Weather Calc take the drugery out of weather related calculations.

What's new · 3.0

Bug fixes and performance improvements

Details

ReleasedFeb 2009
UpdatedJul 2025
Version3.0
Size4.4 MB
RequiresiOS 15.6 or later
Age rating4+
LanguagesEnglish
Price$0.99
Categories WeatherUtilities
Bundle IDcom.blackcatsystems.WeatherCalc