--- title: "EF Scale - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Interested in tornado and wind damage assessments? Wonder how they rate a tornado from EF0 to EF5 without guessing? This app is the answer! We've condensed the Enhanced Fujita (EF) Scale into one e" --- # EF Scale — United States ![EF Scale App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/88/4e/da/884edae8-72b0-1161-c7d7-b5930f0f053c/AppIcon-0-0-1x_U007epad-0-1-sRGB-85-220.png/434x0w.png) **Developer:** [WeatherWary](https://apptail.io/developer/weatherwary-oCY) **Category:** Weather **Rating:** 4.3/5 (3 ratings) **Price:** Free **Bundle ID:** com.weatherwary.efscaleu **Store:** Apple App Store **Country:** United States **Version:** 1.6 (released 2026-08-04) **Original Release:** 2011-02-11 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id418856071) **AppTail Page:** [https://apptail.io/app/ef-scale-Emuj/united-states](https://apptail.io/app/ef-scale-Emuj/united-states) ## EF Scale Description Interested in tornado and wind damage assessments? Wonder how they rate a tornado from EF0 to EF5 without guessing? This app is the answer! We've condensed the Enhanced Fujita (EF) Scale into one easy to use app. Follow the on-screen dialogs as you select your damage indicator based on the damaged object you're looking at. Next select the degree to which the object was damaged. Finally adjust the slider for any variability in the construction. If the building is poorly constructed, lower the windspeed and vice versa. Version 1.0 Basic DI - DOD - construction variability functions NO ADS! Version 1.1 Added pictures to the DI and DODs! Version 1.2 Fixed pictures that weren't displaying correctly Added about & share buttons! Leave us suggestions in the comments or by emailing us! Give us a good idea and we'll try to add it for you. *** 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! *** ## EF Scale Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple124/v4/f0/0a/30/f00a3010-5918-e83a-d2aa-9c4923ce125d/pr_source.png/640x960.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple114/v4/ac/ad/2f/acad2fa0-fa5a-d8cb-dc2d-1bdfa6d3ddae/pr_source.png/640x960.png) ## EF Scale Rating Breakdown in United States - 5 stars: 2 (67%) - 4 stars: 0 (0%) - 3 stars: 1 (33%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## EF Scale Reviews in United States ### ***** "Amazing!!" This application is honestly amazing and very helpful!!! Thank you for making this!! :D -- nickaalex, 2017-02-01 ### ***-- "Interesting But..." It's a detailed and specific analysis of tornado damage to various structures. Allows the user to determine the severity of the storm from observed damage. It's good but there are fewer actual photos or graphic illustrations in the newest update. -- Batman357, 2015-05-01 ### **--- "Please!" Nice app love the model destruction but HATE the real pics! So as I was looking I noticed school as one so I tap on a damage amount IT DOSNT GIVE A MODEL PLEASE MAKE EVERY STRUCTURE AND DAMAGE LEVEL INCLUDE A MODEL!!!!!!!!!!!! -- , 2012-03-01 ### ***** "Worth more than the price!" For those who do damage surveys this is a great find! Nice to see everything integrated into a format which fits fine on an iPhone. No need to lug a laptop around or some printouts to remind you of classification scales... -- stormtracker6, 2011-12-21 ### ****- "Very interesting" This is very informative. Great app. -- Emmaliulu, 2011-07-22 ### ***-- "Pretty good" Needs the photo DI database if you can do it in future update, otherwise top notch. -- J6AKEC, 2011-05-26 ### ***** "Review" Great App. Can't wait to try it out on a real storm! -- OUMatty, 2011-02-15 ### ***** "Easy and accurate" Works well and easy to use! A must-have app to have on hand, especially if you live in tornado ally! -- Gothcube, 2011-02-15 [View all EF Scale reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## EF Scale Discovered Keywords - waris - ef scale ## Apps Similar to EF Scale - [Tornado Vision](https://apptail.io/app/tornado-vision-His/united-states) - [TornadoSpyLite](https://apptail.io/app/tornadospylite-EDU/united-states) - [Live Storm Chasers](https://apptail.io/app/live-storm-chasers-tFub/united-states) - [wXL23](https://apptail.io/app/wxl23-nosc/united-states) - [SatSquatch](https://apptail.io/app/satsquatch-pkxc/united-states) - [Highways & Hailstones](https://apptail.io/app/highways-hailstones-mgZc/united-states) - [HailStrike Go](https://apptail.io/app/hailstrike-go-IFJk/united-states) - [Durant Weather Radar](https://apptail.io/app/durant-weather-radar-pzfp/united-states) - [EverythingWeather](https://apptail.io/app/everythingweather-esav/united-states) - [WeatherFront - Radar & Models](https://apptail.io/app/weatherfront-radar-models-rjtv/united-states) ## EF Scale Available In - [United States](https://apptail.io/app/ef-scale-Emuj/united-states) - [United Kingdom](https://apptail.io/app/ef-scale-Emuj/united-kingdom) - [Italy](https://apptail.io/app/ef-scale-Emuj/italy) - [Portugal](https://apptail.io/app/ef-scale-Emuj/portugal) - [Philippines](https://apptail.io/app/ef-scale-Emuj/philippines) - [Azerbaijan](https://apptail.io/app/ef-scale-Emuj/azerbaijan) - [Belgium](https://apptail.io/app/ef-scale-Emuj/belgium) - [Bulgaria](https://apptail.io/app/ef-scale-Emuj/bulgaria) - [Brazil](https://apptail.io/app/ef-scale-Emuj/brazil) - [Belarus](https://apptail.io/app/ef-scale-Emuj/belarus) - [Canada](https://apptail.io/app/ef-scale-Emuj/canada) - [Switzerland](https://apptail.io/app/ef-scale-Emuj/switzerland) - [Chile](https://apptail.io/app/ef-scale-Emuj/chile) - [China](https://apptail.io/app/ef-scale-Emuj/china) - [Colombia](https://apptail.io/app/ef-scale-Emuj/colombia) - [Czechia](https://apptail.io/app/ef-scale-Emuj/czechia) - [Germany](https://apptail.io/app/ef-scale-Emuj/germany) - [Denmark](https://apptail.io/app/ef-scale-Emuj/denmark) - [Dominican Republic](https://apptail.io/app/ef-scale-Emuj/dominican-republic) - [Algeria](https://apptail.io/app/ef-scale-Emuj/algeria) - [Ecuador](https://apptail.io/app/ef-scale-Emuj/ecuador) - [Estonia](https://apptail.io/app/ef-scale-Emuj/estonia) - [Egypt](https://apptail.io/app/ef-scale-Emuj/egypt) - [Spain](https://apptail.io/app/ef-scale-Emuj/spain) - [Finland](https://apptail.io/app/ef-scale-Emuj/finland) - [France](https://apptail.io/app/ef-scale-Emuj/france) - [Greece](https://apptail.io/app/ef-scale-Emuj/greece) - [Hong Kong SAR China](https://apptail.io/app/ef-scale-Emuj/hong-kong) - [Croatia](https://apptail.io/app/ef-scale-Emuj/croatia) - [Hungary](https://apptail.io/app/ef-scale-Emuj/hungary) - [Indonesia](https://apptail.io/app/ef-scale-Emuj/indonesia) - [Ireland](https://apptail.io/app/ef-scale-Emuj/ireland) - [Israel](https://apptail.io/app/ef-scale-Emuj/israel) - [India](https://apptail.io/app/ef-scale-Emuj/india) - [Iceland](https://apptail.io/app/ef-scale-Emuj/iceland) - [Japan](https://apptail.io/app/ef-scale-Emuj/japan) - [South Korea](https://apptail.io/app/ef-scale-Emuj/south-korea) - [Kuwait](https://apptail.io/app/ef-scale-Emuj/kuwait) - [Kazakhstan](https://apptail.io/app/ef-scale-Emuj/kazakhstan) - [Lebanon](https://apptail.io/app/ef-scale-Emuj/lebanon) - [Lithuania](https://apptail.io/app/ef-scale-Emuj/lithuania) - [Luxembourg](https://apptail.io/app/ef-scale-Emuj/luxembourg) - [Latvia](https://apptail.io/app/ef-scale-Emuj/latvia) - [Malta](https://apptail.io/app/ef-scale-Emuj/malta) - [Mexico](https://apptail.io/app/ef-scale-Emuj/mexico) - [Malaysia](https://apptail.io/app/ef-scale-Emuj/malaysia) - [Nigeria](https://apptail.io/app/ef-scale-Emuj/nigeria) - [Netherlands](https://apptail.io/app/ef-scale-Emuj/netherlands) - [Norway](https://apptail.io/app/ef-scale-Emuj/norway) - [New Zealand](https://apptail.io/app/ef-scale-Emuj/new-zealand) - [Peru](https://apptail.io/app/ef-scale-Emuj/peru) - [Pakistan](https://apptail.io/app/ef-scale-Emuj/pakistan) - [Poland](https://apptail.io/app/ef-scale-Emuj/poland) - [Romania](https://apptail.io/app/ef-scale-Emuj/romania) - [Russia](https://apptail.io/app/ef-scale-Emuj/russia) - [Saudi Arabia](https://apptail.io/app/ef-scale-Emuj/saudi-arabia) - [Sweden](https://apptail.io/app/ef-scale-Emuj/sweden) - [Singapore](https://apptail.io/app/ef-scale-Emuj/singapore) - [Slovenia](https://apptail.io/app/ef-scale-Emuj/slovenia) - [Slovakia](https://apptail.io/app/ef-scale-Emuj/slovakia) - [Thailand](https://apptail.io/app/ef-scale-Emuj/thailand) - [Tunisia](https://apptail.io/app/ef-scale-Emuj/tunisia) - [Türkiye](https://apptail.io/app/ef-scale-Emuj/turkey) - [Taiwan](https://apptail.io/app/ef-scale-Emuj/taiwan) - [Ukraine](https://apptail.io/app/ef-scale-Emuj/ukraine) - [Vietnam](https://apptail.io/app/ef-scale-Emuj/vietnam) - [United Arab Emirates](https://apptail.io/app/ef-scale-Emuj/united-arab-emirates) - [South Africa](https://apptail.io/app/ef-scale-Emuj/south-africa) - [Armenia](https://apptail.io/app/ef-scale-Emuj/armenia) - [Argentina](https://apptail.io/app/ef-scale-Emuj/argentina) - [Austria](https://apptail.io/app/ef-scale-Emuj/austria) - [Australia](https://apptail.io/app/ef-scale-Emuj/australia) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*