Comparison

EF Scale vs Texas Storm Chasers

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

Head to head
About

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.

Highlights
  • Simplified EF Scale assessment
  • Damage indicator selection
  • Degree of damage input
  • Construction variability adjustment
  • Visual damage examples
  • About and share functions
Features
Read full description

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! ***

About

Texas Storm Chasers

Get real-time Texas weather updates, interactive radar, and live storm chase videos. This app provides up-to-date weather information from a team of weather enthusiasts and storm chasers, with features developed based on user suggestions.

Highlights
  • Real-time Texas weather articles
  • Interactive weather radar
  • Live storm chase video
  • Weather blog integration
  • Follower-suggested features
Features
Currently charting
Read full description

Our free Texas Storm Chasers app includes real-time Texas weather articles, interactive weather radar, live storm chase video, and new features based on follower suggestions. After serving over one half million social media followers we’re excited to announce the introduction of the Texas Storm Chasers app. Our team of vetted weather enthusiasts and storm chasers provide you with up-to-date weather information. Some might say we even do it with a bit of Texas flair. Our app is designed to work flawlessly with our weather blog. That compatibility ensures we’re able to provide rapid weather updates during high-impact events. Take that a step further with our free interactive weather radar. Previously available only on our website our interactive weather radar has been included within the app itself. Track storms in your neighborhood or across the United States without leaving the app. Stay weather aware and up to date with the Texas Storm Chasers App, download free today! EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

EF Scale4 screens
Texas Storm Chasers4 screens

Verdict

The call

The clearest difference is in-app purchases: EF Scale at none against Texas Storm Chasers's 2. EF Scale also leads on ads (none vs shown) and review sentiment (67% vs 50%). Texas Storm Chasers's advantage is update cadence (monthly vs every 20 months) and ratings volume (9.2K vs 4). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Texas Storm Chasers sells 2 in-app purchases, starting at $1.49 per month. EF Scale asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Texas Storm Chasers holds the better App Store score, 4.8 against 4.5. That said, the two scores are not equally well evidenced: Texas Storm Chasers has 9.2K ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 67% of EF Scale's written reviews are positive against 50% of Texas Storm Chasers's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

EF Scale ships an update every 20 months, Texas Storm Chasers monthly. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

Scorecard9 real differences · 2 level
EF Scale versus Texas Storm Chasers: the parameters behind the verdict, then further details
ParameterEF ScaleTexas Storm Chasers
PriceFreeFree
Rating4.5 (4 ratings)4.8 (9.2K ratings) — better
Positive reviews66.7% of reviews — better50.0% of reviews
Number of ratings49.2K — better
Update frequencyEvery 20 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank—#196 — better
DevicesiPhone, iPad, MaciPhone, iPad, iPod
Requires iOS26.015.0 — better
Further details — not scored
Size21 MB81 MB
Age rating4+4+
DeveloperWeatherWary LLCTexas Storm Chasers

Customer experience

EF Scale

All ratings4 ratings
Positive75.0%
Neutral25.0%
Negative0.0%
Written reviews9 reviews
Positive66.7%
Neutral22.2%
Negative11.1%

Texas Storm Chasers

All ratings9,241 ratings
Positive95.3%
Neutral2.7%
Negative2.0%
Written reviews130 reviews
Positive50.0%
Neutral13.1%
Negative36.9%

Bugs and requests

EF Scale

Not enough reviews yet to summarise bugs or requests.

Texas Storm Chasers

Reported bugs

5 issues
  • App freezing or not loading properly
  • Radar defaulting to incorrect locations
  • Weather data not updating or displaying correctly
  • Paid subscription not working as expected
  • Compatibility issues with certain devices

Requested features

5 requests
  • Option to disable ads or pay for ad-free version
  • Ability to set a default location and save preferences
  • Improved radar display and zooming functionality
  • Customizable alerts and severe weather notifications
  • Integration with other weather data sources

In-app purchases

None

EF Scale

No in-app purchases

2 purchases

Texas Storm Chasers

Subscriptions2
  • Ad Removal - Monthly$1.491 Month
  • Ad Removal - Yearly7 Days trial$9.991 Year

Questions

Is EF Scale free?
EF Scale is free to download, with no in-app purchases.
Is Texas Storm Chasers free?
Texas Storm Chasers is free to download, with in-app purchases available.
Which has better reviews, EF Scale or Texas Storm Chasers?
Texas Storm Chasers is rated higher. EF Scale averages 4.5 out of 5 from 4 ratings, while Texas Storm Chasers averages 4.8 from 9.2K ratings.
Do EF Scale or Texas Storm Chasers have ads?
Texas Storm Chasers shows ads; EF Scale does not.
Which is updated more often, EF Scale or Texas Storm Chasers?
EF Scale ships an update every 20 months, and Texas Storm Chasers monthly. Most recently, EF Scale was updated on November 1, 2026 and Texas Storm Chasers on November 6, 2026.

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