Comparison

TornadoSpy vs Thermometer

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

Head to head
About

TornadoSpy

Instantly report and view tornado sightings worldwide with real-time radar snapshots. This app provides valuable lead time for users to escape storms, featuring user-submitted and official reports filtered for accuracy.

Highlights
  • Track tornado movement worldwide
  • Report nearby tornadoes
  • Radar snapshot of sightings
  • Official National Weather Service reports
  • Share and view tornado photos
  • Filter sightings by spotter ratings
Features
Currently charting
Read full description

TornadoSpy with AccuSpy™ technology gives you the power to report and view official and user spotted tornadoes instantly which includes a radar snapshot of the sighting. On 5/10/10, a TornadoSpy user spotted the Oklahoma City tornado 20 MINUTES before the NOAA report, which gave other TornadoSpy users valuable lead time to escape the storm. This is a frequent occurrence since user reports are submitted and viewable immediately. - Featured on the front page of USAToday on 5/31/11. - Over 150,000 confirmed alerts sent out - Over 40,000 TornadoSpy spotters in addition to professional spotters from the national weather service. Sightings are filtered through state-of-the art AccuSpy™ technology to prevent false alerts and only send you the most accurate sightings. Features: - Track tornado movement worldwide on the built-in map - Report nearby tornadoes with a simple touch - Includes radar snapshot of sightings - Includes official reports from National Weather Service storm spotters - Share and view tornado photos in seconds - Filter sightings by spotter ratings - View previous tornadoes - Write storm report notes - Users can rate sightings submitted by other users - Landscape or portrait orientations - AccuSpy™ state-of-the art storm spotting Download now, and become a part of the fastest and largest worldwide storm spotting network. Demo video can be seen at justintimeapps.com/ts.html Check out these other apps from justintimeapps: HailSpy TornadoSpy+ TornadoSpy+HD (For the iPad) CoordCalc For every tornado outbreak this year in the US, there have been corresponding reports in TornadoSpy. You can verify this by using the history feature in the app. There is also NOT a subscription fee, and the app currently has a large enough user base such that it has provided alerts up to 30 minutes before the standard NOAA sightings are issued. Also, the Missouri tornado mentioned in the comments was published (picture and all) well before the NOAA sighting. Add alerts@justintimeapps.com to your address book to assure that you receive alerts.

About

Thermometer

This app displays real-time outdoor temperature and local weather conditions for your current location or any saved location. It provides hourly and daily forecasts, helping you stay prepared for the weather.

Highlights
  • Outdoor temperature measurement
  • Feels like temperature
  • Current weather conditions
  • Hourly and daily forecasts (Pro)
  • Unlimited favorite locations
  • Temperature in °C, °F, and K
  • Intuitive graphics
Features
Currently charting
Read full description

Never leave home unprepared again. Thermometer indicates the outside temperature and local weather conditions and any desired location in real time, hourly and daily forecasts. Make sure you have turned on the Location Services of your device and that you are connected to the Internet. At this point the App will detect your geographic position. The display will show the name of the location and the current temperature, also indicating the weather conditions. Data is provided by weather provider weatherstack.com [FEATURES] - Outdoor temperature measurement - Feels like outside temperature - Weather conditions - Hourly and daily weather forecast (Pro version) - Unlimited favorite locations - Temperature in Celsius (°C), Fahrenheit (°F) and Kelvin (K) - Reliable data (weather provider data weatherstack.com) - Intuitive graphics - Ease of use [SUPPORT] If you need help, feel free to contact us at info@lionsapp.com, or visit our official website www.lionsapp.com If you like the app, don't forget to leave us a review on the App Store.

Screenshots

TornadoSpy4 screens
Thermometer4 screens

Verdict

The call

The clearest difference is review sentiment: TornadoSpy at 69% against Thermometer's 17%. TornadoSpy also leads on update cadence (every 2 months vs every 6 months) and price ($1.99 vs $2.99). Thermometer's advantage is rating (4.0 vs 3.8). On ratings volume, ads, in-app purchases and chart position 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

TornadoSpy costs $1.99 and Thermometer $2.99 up front. TornadoSpy sells 2 one-off in-app purchases and Thermometer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Thermometer holds the better App Store score, 4.0 against 3.8. Both are backed by a comparable volume of ratings — 12 and 5 respectively. Written reviews complicate that: 69% of TornadoSpy's written reviews are positive against 17% of Thermometer's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

TornadoSpy ships an update every 2 months, Thermometer every 6 months. Both last shipped on October 23, 2026.

Scorecard6 real differences · 5 level
TornadoSpy versus Thermometer: the parameters behind the verdict, then further details
ParameterTornadoSpyThermometer
Price$1.99 — better$2.99
Rating3.8 (12 ratings)4.0 (5 ratings) — better
Positive reviews69.4% of reviews — better16.7% of reviews
Number of ratings12 — better5
Update frequencyEvery 2 months — betterEvery 6 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
Best chart rank#84#70 — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size23 MB6 MB
Age rating4+4+
DeveloperJustin TimeLionsApp di Nallbati Elton

Customer experience

TornadoSpy

All ratings12 ratings
Positive58.3%
Neutral16.7%
Negative25.0%
Written reviews36 reviews
Positive69.4%
Neutral8.3%
Negative22.2%

Thermometer

All ratings5 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews12 reviews
Positive16.7%
Neutral8.3%
Negative75.0%

In-app purchases

2 purchases

TornadoSpy

One-time2
  • Fast Animated Radar (US)$0.99
  • Extreme Weather Radio$0.99
1 purchases

Thermometer

One-time1
  • Thermometer Pro$1.99

Questions

Is TornadoSpy free?
TornadoSpy costs $1.99, and also offers in-app purchases.
Is Thermometer free?
Thermometer costs $2.99, and also offers in-app purchases.
Which has better reviews, TornadoSpy or Thermometer?
Thermometer is rated higher. TornadoSpy averages 3.8 out of 5 from 12 ratings, while Thermometer averages 4.0 from 5 ratings.
Do TornadoSpy or Thermometer have ads?
Neither TornadoSpy nor Thermometer shows ads.
Which is updated more often, TornadoSpy or Thermometer?
TornadoSpy ships an update every 2 months, and Thermometer every 6 months. Most recently, TornadoSpy was updated on October 23, 2026 and Thermometer on October 23, 2026.
Which is more popular, TornadoSpy or Thermometer?
TornadoSpy currently peaks at #84 in the App Store charts, and Thermometer at #70. Chart position reflects recent download velocity rather than total install base.

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