EF Scale vs Storm Tracker°
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EF Scale
Assess tornado and wind damage with this tool that simplifies the Enhanced Fujita (EF) Scale. Follow on-screen prompts to select damage indicators and degrees of damage, then adjust for construction variability to estimate wind speeds.
- Simplified EF Scale assessment
- Damage indicator selection
- Degree of damage input
- Construction variability adjustment
- Visual damage examples
- About and share functions
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Rate tornado damage the way surveyors do. EF Scale puts the complete Enhanced Fujita scale on your iPhone, iPad, and Mac — all 28 damage indicators, every degree of damage, and the expected wind speeds behind each rating. Browse structure types from small barns and family residences to high-rise buildings, transmission lines, and trees. Compare what you see against reference photos and construction details, then pick a degree of damage and tune the wind speed estimate between its bounds to account for construction quality. • All 28 damage indicators of the Enhanced Fujita scale • Reference photos and construction details for every indicator • Degrees of damage with expected wind speeds and EF ratings • Interactive wind speed estimator with adjustable bounds • EF0–EF5 rating reference, always a tap away • Everything stored on device — works fully offline in the field Built for storm spotters, damage surveyors, emergency managers, students, and weather enthusiasts. *** PLEASE REMEMBER: This app is for reference purposes only. Doing a real damage survey takes knowledge and experience you can't build into an app! Official damage assessments are the business of the National Weather Service and their delegates! ***
Storm Tracker°
Track severe weather events like storms, tornadoes, and hurricanes with real-time radar and forecasts. Get NOAA alerts for floods and other hazards. Monitor weather patterns up to 10 days in advance.
- Live storm tracking
- Doppler radar for rain and snow
- NOAA weather warnings and alerts
- Hourly and 10-day forecasts
- HD quality map
- Unlimited locations
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Track LIVE Storm’s Activity; Check the Weather updates, radar, and get warnings. Follow the storm’s path and its development NOW, and days ahead. Be well-informed. STORM TRACKER - EXTREME WEATHER RADAR Accurate, reliable, and easy-to-navigate Storm Tracker with 1.4M downloads worldwide. The storm tracker app provides 24/7 real-time tracking of several weather patterns like heavy storms, tornadoes, hurricanes, typhoons, tropical storms, cyclones, and other severe weather conditions. FREE ACCESS TO STORM TRACKER Needful Weather Information; • Rain & Snow Radar - Doppler info • 24/7 NOAA Weather Warnings & Alerts on maps for floods, tides, and storms (US only) • Weather charts for temperature, precipitation, wind speed, and pressure information • Detailed Hourly forecasts, up to 10 days • HD quality map • Unlimited Locations SUPPORTED COUNTRIES AND REGIONS NORTH AMERICA: United States*, Canada, Mexico EUROPE: France, United Kingdom, Germany, Spain, Portugal, Netherlands, Switzerland, Norway, Sweden, Finland, Denmark APAC: Japan, Hong Kong, Korea, Taiwan & Australia *Frequent severe weather conditions coverage in Florida, Texas, Alabama, Oklahoma, Kansas, Louisiana, Arkansas, Georgia, Mississippi, North and South Carolina SUBSCRIBE TO PREMIUM ACCESS • Hurricane tracker • Rain Radar; Future precipitation forecasts • Wind Tracker; Map with animated wind direction with a 12-day windy forecast • Ad-free Experience Subscriptions automatically renew each month 24 hours before the end of the current period and your iTunes account will be charged unless auto-renew is turned off at least 24 hours before the end of the current period. You can turn off auto-renew at any time from within the app. Any unused portion of a free trial will be forfeited if you purchase a subscription. Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy UNITS OF MEASUREMENT Fahrenheit/Celsius | Miles/Kilometers | Wind speed in kN, mph, km/h, Beaufort | Barometric Pressure in Inches (inHG) and Atmospheric Pressure in Hectopascal (hPa) YOUR EXPERIENCE IS IMPORTANT TO US! *Please check if the answers are available in the Frequently Asked Questions app Settings. *(FQA) Our support team is very happy with your feedback, questions, and suggestions and is always ready to help you via support@impalastudios.com. Storm Tracker (C) 2014 Impala Studios
Screenshots
Verdict
The clearest difference is in-app purchases: EF Scale at none against Storm Tracker°'s 8. EF Scale also leads on ads (none vs shown) and review sentiment (67% vs 46%). Storm Tracker°'s advantage is update cadence (every 2 months vs every 20 months) and ratings volume (82K vs 4). On price, rating and device support 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
Both are free to download. Storm Tracker° sells 8 in-app purchases, starting at $2.99 per 7 days. EF Scale asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for EF Scale against 4.6 for Storm Tracker°. That said, the two scores are not equally well evidenced: Storm Tracker° has 82K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 67% of EF Scale's written reviews are positive against 46% of Storm Tracker°'s.
EF Scale ships an update every 20 months, Storm Tracker° every 2 months. The most recent releases landed on October 4, 2026 and October 19, 2026 respectively.
| Parameter | EF Scale | Storm Tracker° |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (4 ratings) | 4.6 (82K ratings) — better |
| Positive reviews | 66.7% of reviews — better | 46.3% of reviews |
| Number of ratings | 4 | 82K — better |
| Update frequency | Every 20 months | Every 2 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Best chart rank | — | #60 — better |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 299 MB |
| Age rating | 4+ | 4+ |
| Developer | WeatherWary LLC | Impala Studios |
Customer experience
EF Scale
Storm Tracker°
Bugs and requests
EF Scale
Not enough reviews yet to summarise bugs or requests.
Storm Tracker°
Reported bugs
3 issues- Weather data not updating in real-time
- App crashing or freezing on some devices
- Saved locations not syncing properly
Requested features
4 requests- Add wind speed indicator
- Improve radar coverage in remote areas
- Provide more customization options
- Offer a one-time purchase option instead of subscription
In-app purchases
EF Scale
No in-app purchases
Storm Tracker°
- Weekly Premium Subscription3 Days trial$2.997 Days
- Full Access for a Week3 Days trial$3.997 Days
- Full Access for a Week3 Days trial$4.997 Days
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- Annual Limited Time Offer$9.991 Year
- Limited Time Offer$14.991 Year
- Annual Premium Subscription$19.991 Year
- Annual full access with no ads$19.991 Year
- Annual full access with no ads$24.991 Year
Questions
Is EF Scale free?
Is Storm Tracker° free?
Which has better reviews, EF Scale or Storm Tracker°?
Do EF Scale or Storm Tracker° have ads?
Which is updated more often, EF Scale or Storm Tracker°?
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