Comparison

EF Scale vs Unity Weather

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

Unity Weather

This weather application displays all measurements in both metric and imperial units simultaneously. It provides temperature in Fahrenheit and Celsius, wind speed in km/h and mph, and pressure in hPa and inHg, among other metrics.

Highlights
  • Dual unit display (metric & imperial)
  • Temperature in °F and °C
  • Wind speed in km/h and mph
  • Pressure in hPa and inHg
  • Future feature roadmap available
Features
Read full description

UnityWeather is a simple weather app for your phone. What makes it unique is that it shows the measurements in both metric in imperial. Temperature shows Fahrenheit and Celsius, wind in km/h and mph, pressure in hPa and inHg, and so on. To see what we have planned for future versions, and to request new features check out https://unityweather.app/roadmap

Screenshots

EF Scale4 screens
Unity Weather4 screens

Verdict

The call

The clearest difference is rating: EF Scale at 4.5 against Unity Weather's 3.8. EF Scale also leads on review sentiment (67% vs 25%). Unity Weather's advantage is update cadence (every 5 months vs every 20 months) and iOS requirement (16.0 vs 26.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

EF Scale holds the better App Store score, 4.5 against 3.8. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews point the same way: 67% of EF Scale's written reviews are positive against 25% of Unity Weather's.

UpkeepUpdate frequency

EF Scale ships an update every 20 months, Unity Weather every 5 months. The most recent releases landed on August 8, 2026 and September 20, 2026 respectively.

Scorecard4 real differences · 6 level
EF Scale versus Unity Weather: the parameters behind the verdict, then further details
ParameterEF ScaleUnity Weather
PriceFreeFree
Rating4.5 (4 ratings) — better3.8 (4 ratings)
Positive reviews66.7% of reviews — better25.0% of reviews
Number of ratings44
Update frequencyEvery 20 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS26.016.0 — better
Further details — not scored
Size18 MB7 MB
Age rating4+4+
DeveloperWeatherWary LLCJoel Rainwater

Customer experience

EF Scale

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

Unity Weather

All ratings4 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

In-app purchases

None

EF Scale

No in-app purchases

None

Unity Weather

No in-app purchases

Questions

Is EF Scale free?
EF Scale is free to download, with no in-app purchases.
Is Unity Weather free?
Unity Weather is free to download, with no in-app purchases.
Which has better reviews, EF Scale or Unity Weather?
EF Scale is rated higher. EF Scale averages 4.5 out of 5 from 4 ratings, while Unity Weather averages 3.8 from 4 ratings.
Do EF Scale or Unity Weather have ads?
Neither EF Scale nor Unity Weather shows ads.
Which is updated more often, EF Scale or Unity Weather?
EF Scale ships an update every 20 months, and Unity Weather every 5 months. Most recently, EF Scale was updated on August 8, 2026 and Unity Weather on September 20, 2026.

Other comparisons