# RadarScope vs EF Scale

The clearest difference is price: EF Scale at Free against RadarScope's $9.99. EF Scale also leads on in-app purchases (none vs 4) and rating (4.5 vs 4.2). RadarScope's advantage is update cadence (monthly vs every 20 months) and ratings volume (2.8K vs 4). On ads there is nothing between them.

EF Scale is free to download; RadarScope costs $9.99 up front. RadarScope sells 4 in-app purchases, starting at $9.99 per year. EF Scale asks for nothing beyond the download.

EF Scale holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: RadarScope has 2.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 51% of RadarScope's written reviews are positive against 67% of EF Scale's.

RadarScope ships an update monthly, EF Scale every 20 months. The most recent releases landed on October 17, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | RadarScope | EF Scale |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Rating | [4.2 (2.8K ratings)](https://appshunter.io/ios/app/radarscope/id288419283/reviews) | **[4.5 (4 ratings)](https://appshunter.io/ios/app/ef-scale/id418856071/reviews)** |
| Number of ratings | **2.8K** | 4 |
| Positive reviews | 51.4% of reviews | **66.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 20 months |
| Monetization | Free with in-app purchases | **Free** |
| Best chart rank | **#1** | — |
| Size | 310 MB | 18 MB |
| Requires iOS | **16.6** | 26.0 |
| Devices | **iPhone, iPad, Mac, Apple TV, Apple Watch** | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Base Velocity, LLC](https://appshunter.io/developer/288419286) | [WeatherWary LLC](https://appshunter.io/developer/418856074) |

## What reviewers say

### RadarScope

[App page](https://appshunter.io/ios/app/radarscope/id288419283)

**Currently charting:** #1 Top Paid · Weather, #13 Top Grossing · Weather, #65 Top Paid (US App Store)

Visualize professional-grade weather radar data with advanced tools for meteorologists, storm spotters, and enthusiasts. Access real-time radar information, severe weather alerts, and historical data with optional subscription tiers for enhanced capabilities.

**Highlights:** Single-site radar data visualization, Severe weather alerts and warnings, NWS-generated storm tracks, Historical radar data archive, GOES satellite products, Multi-Radar Multi-Sensor products

**Features:** Family Sharing, Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Tier 1 | $9.99 | per year |
| Pro Tier 2 | $14.99 | per month |
| Pro Tier 2 | $99.99 | per year |
| RadarScope Pro Subscription | $9.99 | one-time |

**What reviewers like**

- 🚀 Excellent radar app
- 🔍 Detailed radar data and features
- ⚡ Lightning detection
- 📍 Accurate location tracking
- 🌪️ Helpful for storm tracking and chasing

**What reviewers complain about**

- 💰 Expensive with additional subscription fees
- 🗺️ Limited map details without subscription
- 🕰️ Radar data can be delayed
- 🇨🇦 Limited support for Canadian users
- 🤔 Steep learning curve for novice users

**Reported bugs**

- Subscription issues and failed purchases
- Inconsistent radar updates and connectivity problems
- Apple Watch app limitations and bugs

**Requested features**

- Winter weather advisories and precipitation coloring
- Ability to view multiple radars simultaneously
- More detailed road maps
- Archived radar data access
- Customizable alert colors and notifications


### 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


## Frequently asked questions

### Is RadarScope free?

RadarScope costs $9.99, and also offers in-app purchases.

### Is EF Scale free?

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

### Which has better reviews, RadarScope or EF Scale?

EF Scale is rated higher. RadarScope averages 4.2 out of 5 from 2.8K ratings, while EF Scale averages 4.5 from 4 ratings.

### Do RadarScope or EF Scale have ads?

Neither RadarScope nor EF Scale shows ads.

### Which is updated more often, RadarScope or EF Scale?

RadarScope ships an update monthly, and EF Scale every 20 months. Most recently, RadarScope was updated on October 17, 2026 and EF Scale on October 4, 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.*