Weather Calc Downloads & RevenueWeather Calc · App Store
Weather Calc is #163 in Weather Paid in United States and charting in 13 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperBlack Cat Systems
CategoryWeather
Price0.99 EUR
Released
Rating★ 5.0 (1)
Version3.0
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)500+ worldwide
📈Charting in a new country in 2 charts📈Charting in a new country🆕First spotted by AppInsider🆕Released on the App Store
Full timeline · 9 events in the last 12 months
- 📈Weather Calc charting in a new country in 2 chartsIndia · Russia
- 📈Weather Calc charting in a new countryUnited Kingdom
- 📈Weather Calc charting in a new country in 3 chartsCanada · Indonesia · Saudi Arabia
- 📈Weather Calc entered the top 100Top Paid · Weather · ID
- 📈Weather Calc entered the top 100Top Paid · Weather · IT
- 📈Weather Calc charting in a new country in 2 chartsItaly · Japan
- 📈Weather Calc charting in a new country in 4 chartsUnited Arab Emirates · Brazil · France · United States
- 🆕Weather Calc first spotted by AppInsider#66 in Top Paid · Weather · Germany
- 🆕Weather Calc released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
5.0 ★
1 ratings
Measured
Best rank now
#163
Weather PaidMeasured
Weather Calc on the App Store
App details
App ID
305762968
Publisher
Black Cat Systems
On the store since
Feb 2009
17 years on the store
Minimum OS
iOS 15.6+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
4 MB
Also listed in
Utilities
Weather Calc downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| United States | WeatherPaid | #163 |
 China | WeatherPaid | #156 |
 United Kingdom | WeatherPaid | #132 |
| Germany | WeatherPaid | #169 |
 France | WeatherPaid | #130 |
 India | WeatherPaid | #112 |
 Canada | WeatherPaid | #134 |
 Brazil | WeatherPaid | #134 |
 Australia | WeatherPaid | #141 |
 Russia | WeatherPaid | #131 |
 Indonesia | WeatherPaid | #107 |
 Saudi Arabia | WeatherPaid | #161 |
 United Arab Emirates | WeatherPaid | #153 |
Apps near Weather Calc on the chart
Weather Paid, around #163.
Ratings
App Store, worldwide.
Rating
5.0 ★
1 ratings
Measured
Ratings
1
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.9★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Weather apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Weather Calc
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.
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.
Latest updates
3.0
Bug fixes and performance improvements
