Solar Flare Alert vs StormWatch
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Flare Alert
Stay informed about space weather with real-time solar flare alerts, forecasts, and geomagnetic storm data. Monitor solar wind, IMF, and view the latest coronagraph imagery. Includes widgets and Apple Watch support for quick access to critical information.
- Solar flare and geomagnetic storm alerts
- Live space weather data (Kp index, solar wind)
- Coronagraph imagery for CME tracking
- Home Screen and Lock Screen widgets
- Apple Watch app with Live Activity
- Data from NOAA and NASA sources
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See what the Sun is doing now and understand what may happen next. Solar Flare Alert brings live space weather, solar flare alerts, forecasts and key solar conditions into one clear dashboard. Follow solar flares, geomagnetic storms, Kp, solar wind and IMF data using trusted NOAA and NASA sources. ≋≋ SOLAR FLARE & STORM ALERTS ≋≋ Stay informed when solar activity increases. • M-class and X-class solar flare alerts • Geomagnetic storm alerts • Official NOAA space weather notices • Clear alert history and current conditions • Space weather forecasts and recent trends ≋≋ LIVE SPACE WEATHER ≋≋ Monitor the signals used to understand changing solar and geomagnetic conditions. • X-ray flux and flare intensity • Kp geomagnetic activity • Solar wind speed and conditions • IMF and Bz data • 24-hour charts and recent events • Space weather forecasts ≋≋ CME WATCH ≋≋ Explore the latest NOAA SWPC CCOR-2 coronagraph imagery. • Latest coronagraph images • White Light and Running Difference views • Image capture and update times • Pinch to zoom and explore • Official 24-hour coronagraph animation Coronagraph images can show expanding material around the Sun associated with coronal mass ejections. Not every CME is directed toward Earth. ≋≋ WIDGETS & APPLE WATCH ≋≋ Check important solar conditions without opening the app. • Small, medium and large Home Screen widgets • Lock Screen widgets • Apple Watch app • Quick access to solar flare, Kp and solar wind information • Live Activity updates ≋≋ BUILT FOR QUICK CHECKING ≋≋ Solar Flare Alert is useful for anyone interested in space weather as well as people who rely on technologies that can be affected by increased solar activity. This includes: • GPS and GNSS users • Drone pilots • Amateur and professional radio users • Satellite and field equipment users • Aurora and space weather enthusiasts ≋≋ TRUSTED DATA ≋≋ Solar Flare Alert uses data from sources including NOAA SWPC and NASA. CME Watch imagery is provided by NOAA SWPC CCOR-2. ≋≋ PRIVACY ≋≋ Solar Flare Alert does not collect your personal data. ≋≋ SUBSCRIPTION ≋≋ An active annual subscription is required to access the app. Eligible new users can start with a 7-day free trial. • Payment is charged to your Apple ID account at confirmation of purchase • Subscription renews automatically unless canceled at least 24 hours before the end of the current period • Manage or cancel your subscription in Account Settings • Pricing may vary by country or region and is shown before purchase Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
StormWatch
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StormWatch warns you of incoming storms based on sudden, rapid pressure drops, offering detailed pressure trends from 6 hours to 30 days. Whether you are a sailor, fisher, or weather enthusiast, know what's coming before it happens.
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Verdict
The clearest difference is in-app purchases: StormWatch at none against Solar Flare Alert's 2. StormWatch also leads on update cadence (every 3 days vs every 3 weeks). On price, ads, device support and iOS requirement 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
Both are free to download. Solar Flare Alert sells 2 in-app purchases, starting at $3.99 per month. StormWatch asks for nothing beyond the download.
Solar Flare Alert ships an update every 3 weeks, StormWatch every 3 days. The most recent releases landed on November 9, 2026 and November 5, 2026 respectively.
| Parameter | Solar Flare Alert | StormWatch |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 3 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | — |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Requires iOS | 17.6 | 17.0 — better |
| Further details — not scored | ||
| Size | 13 MB | 1 MB |
| Age rating | 4+ | 17+ |
| Developer | Daniel Miara | John Hatton-Edge |
In-app purchases
Solar Flare Alert
- Solar Flare Alert: Forecasts$3.991 Month
- Auto-renewable annual subscription7 Days trial$29.991 Year
StormWatch
No in-app purchases
Questions
Is Solar Flare Alert free?
Is StormWatch free?
Do Solar Flare Alert or StormWatch have ads?
Which is updated more often, Solar Flare Alert or StormWatch?
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