# Thunderly vs Flash Weather

The clearest difference is in-app purchases: Thunderly at none against Flash Weather's 2. Thunderly also leads on ratings volume (2.6K vs 104) and iOS requirement (11.0 vs 15.0). Flash Weather's advantage is chart position (#116 vs unranked). On price, rating, review sentiment and update cadence there is nothing between them.

Both are free to download. Flash Weather sells 2 in-app purchases, starting at $3.99 per month. Thunderly asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.3 for Thunderly against 4.4 for Flash Weather. That said, the two scores are not equally well evidenced: Thunderly has 2.6K ratings behind it against 104, so its average is the more settled of the two. Written reviews are what separate them: 58% of Thunderly's written reviews are positive against 65% of Flash Weather's.

Thunderly ships an update every 3 weeks, Flash Weather fortnightly. The most recent releases landed on October 22, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Thunderly | Flash Weather |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (2.6K ratings)](https://appshunter.io/ios/app/thunderly/id1341334743/reviews) | **[4.4 (104 ratings)](https://appshunter.io/ios/app/flash-weather-future-radar/id6462927563/reviews)** |
| Number of ratings | **2.6K** | 104 |
| Positive reviews | 57.7% of reviews | **64.6% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Best chart rank | — | **#116** |
| Size | 113 MB | 72 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Jan Plesek](https://appshunter.io/developer/579661449) | [Flash Scientific Technology](https://appshunter.io/developer/1703653310) |

## What reviewers say

### Thunderly

[App page](https://appshunter.io/ios/app/thunderly/id1341334743)

Visualize real-time lightning strikes globally on an interactive map. Explore weather data like clouds and precipitation, and measure distances to storms. You can even simulate lightning flashes with your camera.

**Highlights:** Real-time global lightning map, Accurate day/night cycle, Real-time clouds and precipitation layers, Lightning history layer (last hour), Zoomable map detail, Storm distance measurement, Simulated lightning flashes

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🌟 Awesome app
- 🌩️ Great for tracking storms
- 🎨 Beautiful graphics
- 🔊 Realistic sound effects
- 🌍 Global coverage

**What reviewers complain about**

- 🐛 Crashes frequently
- 🔌 App not working/functional
- 🕰️ App no longer updated
- 🔇 Sound/vibration issues
- 📱 Compatibility problems on older devices

**Reported bugs**

- App crashes on launch
- Globe not rendering properly
- Lightning data not updating in real-time
- Incorrect lightning strike detection

**Requested features**

- Add ability to track past lightning strikes
- Implement distance/location-based alerts
- Include weather data and radar
- Add support for landscape mode and iPad
- Provide more customization options


### Flash Weather

[App page](https://appshunter.io/ios/app/flash-weather-future-radar/id6462927563)

**Currently charting:** #116 Top Grossing · Weather (US App Store)

Get precise, AI-powered weather alerts for lightning, heat risk, and radar. Receive instant notifications tailored to your location, with customizable settings for safety and planning outdoor activities. Includes hourly and 7-day forecasts.

**Highlights:** AI lightning prediction, Real-time heat risk metrics, Current and future radar maps, Smart push notifications, Hourly and 7-day forecasts, Customizable warning settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Flash Premium Monthly | $3.99 | per month |
| Flash Premium Yearly | $39.99 | per year |


## Frequently asked questions

### Is Thunderly free?

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

### Is Flash Weather free?

Flash Weather is free to download, with in-app purchases available.

### Which has better reviews, Thunderly or Flash Weather?

Flash Weather is rated higher. Thunderly averages 4.3 out of 5 from 2.6K ratings, while Flash Weather averages 4.4 from 104 ratings.

### Do Thunderly or Flash Weather have ads?

Neither Thunderly nor Flash Weather shows ads.

### Which is updated more often, Thunderly or Flash Weather?

Thunderly ships an update every 3 weeks, and Flash Weather fortnightly. Most recently, Thunderly was updated on October 22, 2026 and Flash Weather on October 20, 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.*