Comparison

Weather Calc vs Tornado Tracker Radar Pro

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Weather Calc

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
Currently charting
Read full description

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.

About

Tornado Tracker Radar Pro

Provides real-time severe weather alerts and detailed radar data, including tornado vortex signatures, hail, and damaging wind alerts. Track storms, view lightning strikes, and access NWS watches and warnings.

Highlights
  • Live Doppler radar updates
  • Storm signature detection (tornado, hail, wind)
  • Lightning strike data
  • Hurricane and tropical cyclone tracking
  • NWS watches, warnings, and advisories
  • Current GPS location and address search
Features
Currently charting
Read full description

Tornado Tracker Weather Radar was developed by Severe WX Warn and contains features such as storm signatures(tornado vortex signatures, hail storm signatures and damaging wind signatures.) The app also includes storms reports for tornadoes, damaging winds and severe hail. Along with this the app also includes lightning strike data, active hurricanes and tropical cyclones, global surface winds, cloud cover and NWS watches, warnings and advisories. All data feeds are direct from NOAA, NWS and the SPC. -High Resolution Live Level III Doppler Radar that updates automatically every 5 minutes. -Storm Tracks for Tornado Vortex Signatures, Hail and Severe Wind. -Doppler Radar Signatures for Tornadoes, Hail and Wind. -Hail signatures display max and min. size. -Hurricane and Tropics Tracking Information. -Live Lightning Data. -Current GPS Location. -Address Search for other locations. -NWS Watches, Warnings and Advisories. -SPC Outlooks -Cloud Cover Data -NOAA Storm Reports (24 hr. & Weekly)

Screenshots

Weather Calc4 screens
Tornado Tracker Radar Pro3 screens

Verdict

The call

The clearest difference is review sentiment: Weather Calc at 86% against Tornado Tracker Radar Pro's 0%. Weather Calc also leads on rating (4.3 vs 1.3) and ads (none vs shown). On ratings volume, update cadence, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

Weather Calc costs $0.99 and Tornado Tracker Radar Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Weather Calc holds the better App Store score, 4.3 against 1.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 86% of Weather Calc's written reviews are positive against 0% of Tornado Tracker Radar Pro's.

UpkeepUpdate frequency

Weather Calc ships an update every 32 months, Tornado Tracker Radar Pro every 24 months. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.

Scorecard4 real differences · 7 level
Weather Calc versus Tornado Tracker Radar Pro: the parameters behind the verdict, then further details
ParameterWeather CalcTornado Tracker Radar Pro
Price$0.99 — better$4.99
Rating4.3 (3 ratings) — better1.3 (4 ratings)
Positive reviews85.7% of reviews — better0.0% of reviews
Number of ratings34 — better
Update frequencyEvery 32 monthsEvery 24 months — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationPaidPaid
Best chart rank#165 — better#184
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size4 MB0 MB
Age rating4+4+
DeveloperBlack Cat Systemscorey hoggard

Customer experience

Weather Calc

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive85.7%
Neutral14.3%
Negative0.0%

Tornado Tracker Radar Pro

All ratings4 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews5 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

None

Weather Calc

No in-app purchases

None

Tornado Tracker Radar Pro

No in-app purchases

Questions

Is Weather Calc free?
Weather Calc costs $0.99, with no in-app purchases.
Is Tornado Tracker Radar Pro free?
Tornado Tracker Radar Pro costs $4.99, with no in-app purchases.
Which has better reviews, Weather Calc or Tornado Tracker Radar Pro?
Weather Calc is rated higher. Weather Calc averages 4.3 out of 5 from 3 ratings, while Tornado Tracker Radar Pro averages 1.3 from 4 ratings.
Do Weather Calc or Tornado Tracker Radar Pro have ads?
Tornado Tracker Radar Pro shows ads; Weather Calc does not.
Which is updated more often, Weather Calc or Tornado Tracker Radar Pro?
Weather Calc ships an update every 32 months, and Tornado Tracker Radar Pro every 24 months. Most recently, Weather Calc was updated on October 31, 2026 and Tornado Tracker Radar Pro on November 1, 2026.
Which is more popular, Weather Calc or Tornado Tracker Radar Pro?
Weather Calc currently peaks at #165 in the App Store charts, and Tornado Tracker Radar Pro at #184. Chart position reflects recent download velocity rather than total install base.

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