# Storm! vs Pilot Charts

The clearest difference is price: Storm! at Free against Pilot Charts's $5.99. Storm! also leads on rating (3.7 vs 1.7) and update cadence (every 2 weeks vs every 23 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Storm! is free to download; Pilot Charts costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Storm! holds the better App Store score, 3.7 against 1.7. That said, the two scores are not equally well evidenced: Storm! has 38 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 33% and 33% positive.

Storm! ships an update every 2 weeks, Pilot Charts every 23 months. The most recent releases landed on September 12, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Storm! | Pilot Charts |
| --- | --- | --- |
| Price | **Free** | $5.99 |
| Rating | **[3.7 (38 ratings)](https://appshunter.io/ios/app/storm/id1118753431/reviews)** | [1.7 (3 ratings)](https://appshunter.io/ios/app/pilot-charts/id1616211846/reviews) |
| Number of ratings | **38** | 3 |
| Positive reviews | 33.3% of reviews | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 23 months |
| Monetization | **Free** | Paid |
| Size | 13 MB | 54 MB |
| Requires iOS | **11.4** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Riyad Habash](https://appshunter.io/developer/1073719756) | [Johannes Wagener](https://appshunter.io/developer/688814588) |

## What reviewers say

### Storm!

[App page](https://appshunter.io/ios/app/storm/id1118753431)

This app estimates the distance of lightning storms using a physics-based approach. Simply tap "lightning" when you see it and "thunder" when you hear it to get an approximate distance.

**Highlights:** Lightning strike detection, Thunder sound timing, Distance calculation, Physics-based estimation

**In-app purchases:** none


### Pilot Charts

[App page](https://appshunter.io/ios/app/pilot-charts/id1616211846)

Access historical wind and wave data for oceans worldwide, presented in monthly charts. Explore conditions for the Atlantic, Pacific, and Indian Oceans, with additional regions available for free download.

**Highlights:** Monthly wind and wave condition charts, Oceanic data for Atlantic, Pacific, Indian Oceans, Historical data from the last century, Free additional chart downloads, Preloaded North Atlantic chart

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Storm! free?

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

### Is Pilot Charts free?

Pilot Charts costs $5.99, with no in-app purchases.

### Which has better reviews, Storm! or Pilot Charts?

Storm! is rated higher. Storm! averages 3.7 out of 5 from 38 ratings, while Pilot Charts averages 1.7 from 3 ratings.

### Do Storm! or Pilot Charts have ads?

Neither Storm! nor Pilot Charts shows ads.

### Which is updated more often, Storm! or Pilot Charts?

Storm! ships an update every 2 weeks, and Pilot Charts every 23 months. Most recently, Storm! was updated on September 12, 2026 and Pilot Charts on September 25, 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.*