Storm! vs Pilot Charts
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Storm!
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.
- Lightning strike detection
- Thunder sound timing
- Distance calculation
- Physics-based estimation
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"Storm!" is an app which calculates the distance of lightning storm from your location, based on physics facts. once you see the lightning press on "lightning" button then press on "Thunder" button once you hear the thunder sound. The app will give you your approximate distance from the lightning storm.
Pilot Charts
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.
- 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
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Pilot charts show the prevailing wind and wave conditions in our oceans for each month based on statistics of the last century. This app gives you easy access to all those and lets you browse them month by month. The charts are provided by the National Geospatial-Intelligence Agency and cover: - Atlantic - Pacific - Indian Ocean - Caribbean Sea The app comes preloaded with the chart for the North Atlantic. Additional charts can be downloaded free of charge.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Storm! | Pilot Charts |
|---|---|---|
| Price | Free — better | $5.99 |
| Rating | 3.7 (38 ratings) — better | 1.7 (3 ratings) |
| Positive reviews | 33.3% of reviews | 33.3% of reviews |
| Number of ratings | 38 — better | 3 |
| Update frequency | Every 2 weeks — better | Every 23 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.4 — better | 15.0 |
| Further details — not scored | ||
| Size | 13 MB | 54 MB |
| Age rating | 4+ | 4+ |
| Developer | Riyad Habash | Johannes Wagener |
Customer experience
Storm!
Pilot Charts
In-app purchases
Storm!
No in-app purchases
Pilot Charts
No in-app purchases
