# EF Scale vs Tempest Weather

The clearest difference is rating: EF Scale at 4.5 against Tempest Weather's 4.0. Tempest Weather's advantage is update cadence (every 3 weeks vs every 20 months) and ratings volume (493 vs 4). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

EF Scale holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Tempest Weather has 493 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 67% of EF Scale's written reviews are positive against 60% of Tempest Weather's.

EF Scale ships an update every 20 months, Tempest Weather every 3 weeks. The most recent releases landed on October 4, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | EF Scale | Tempest Weather |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (4 ratings)](https://appshunter.io/ios/app/ef-scale/id418856071/reviews)** | [4.0 (493 ratings)](https://appshunter.io/ios/app/tempest-weather/id1125427067/reviews) |
| Number of ratings | 4 | **493** |
| Positive reviews | **66.7% of reviews** | 60.4% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 20 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Best chart rank | — | **#75** |
| Size | 18 MB | 44 MB |
| Requires iOS | 26.0 | **13.0** |
| Devices | iPhone, iPad, Mac | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [WeatherWary LLC](https://appshunter.io/developer/418856074) | [WeatherFlow](https://appshunter.io/developer/317992028) |

## What reviewers say

### EF Scale

[App page](https://appshunter.io/ios/app/ef-scale/id418856071)

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:** Vision Pro support

**In-app purchases:** none


### Tempest Weather

[App page](https://appshunter.io/ios/app/tempest-weather/id1125427067)

**Currently charting:** #75 Top Free · Weather (US App Store)

This app connects to a proprietary weather sensor to provide real-time local weather data, lightning and rain alerts, and highly accurate forecasts. It integrates with smart home devices for optimized energy and water usage, and offers customizable data sharing.

**Highlights:** Real-time weather conditions, Lightning and rain alerts, Accurate 10-day forecast, Smart home integration, Historical weather data, Customizable data sharing

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy setup
- 🚀 Responsive app
- 🚀 Accurate weather data
- 🚀 Integrates with other apps
- 🚀 Detailed historical data

**What reviewers complain about**

- 🐛 Connectivity issues
- 🐛 Inaccurate rain/wind measurements
- 🐛 Frequent app crashes
- 🐛 Unreliable forecasts
- 🐛 Buggy Apple Watch app

**Reported bugs**

- App freezes on launch
- Widgets stop working after updates
- Complications not updating on Apple Watch
- Location detection issues

**Requested features**

- Add dark mode
- Improve graph visualization
- Integrate with smart home platforms
- Add more weather data points
- Improve notification settings


## Frequently asked questions

### Is EF Scale free?

EF Scale is free to download, with no in-app purchases.

### Is Tempest Weather free?

Tempest Weather is free to download, with no in-app purchases.

### Which has better reviews, EF Scale or Tempest Weather?

EF Scale is rated higher. EF Scale averages 4.5 out of 5 from 4 ratings, while Tempest Weather averages 4.0 from 493 ratings.

### Do EF Scale or Tempest Weather have ads?

Neither EF Scale nor Tempest Weather shows ads.

### Which is updated more often, EF Scale or Tempest Weather?

EF Scale ships an update every 20 months, and Tempest Weather every 3 weeks. Most recently, EF Scale was updated on October 4, 2026 and Tempest Weather on October 17, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*