Solar Activity vs SpaceWeatherX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Solar Activity
Track solar activity with a forecast for magnetic storms up to 27 days in advance. View the latest images and videos of the sun, and monitor key metrics like the Kp index and sunspots.
- Magnetic storm forecast
- Kp index forecast (3-27 days)
- Aurora borealis predictions
- Sunspot tracking
- Solar wind monitoring
- Latest SOHO/SDO images & videos
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Monitor solar activity. Get a solar storm forecast for the next 3-27 days and view the latest images and videos from SOHO/SDO. Also includes: - magnetic storm forecast - Kp index forecast for 3/27 days - aurora borealis - sunspots - solar wind
SpaceWeatherX
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SpaceWeatherX brings solar activity, geomagnetic conditions and aurora information together in a clear, multilingual app. Start on Now for an overview of current conditions. Explore solar activity, follow NOAA space-weather alerts, and check aurora conditions for your selected city. Data freshness and unavailable feeds are clearly marked. CME event details include available NASA DONKI analysis, speed, angular width and reported Earth-impact information. Animated Sun–Earth and eruption-site views are illustrative reconstructions, not observations or forecast models. When available, open the original NASA CCMC model separately with its legend and timestamps preserved. SpaceWeatherX Plus is an optional auto-renewable annual subscription that removes ads. Payment is charged to your Apple Account. The subscription renews each year unless cancelled before renewal in your App Store account settings. Prices are shown in your local currency before purchase. Restore purchases and manage your subscription in the app. Alerts and data remain available without a subscription. SpaceWeatherX is an informational app, not an emergency or safety-critical warning system. NOAA SWPC remains the operational source for official space-weather alerts. Data availability and forecasts may change. Languages: English, Croatian, German, Spanish, French, Italian, Portuguese, Japanese and Simplified Chinese. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://spaceweatherx.com/en/privacy.html Earth imagery: NASA/GSFC Scientific Visualization Studio. Blue Marble Next Generation data: Reto Stockli (NASA/GSFC) and NASA Earth Observatory. City Lights: NASA/GSFC. Sources: https://svs.gsfc.nasa.gov/3615/ and https://svs.gsfc.nasa.gov/30003/
Screenshots
Verdict
The clearest difference is in-app purchases: Solar Activity at none against SpaceWeatherX's 1. SpaceWeatherX's advantage is update cadence (every 4 days vs every 3 months). 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. SpaceWeatherX sells 1 in-app purchase, starting at $8.99 per year. Solar Activity asks for nothing beyond the download.
Solar Activity ships an update every 3 months, SpaceWeatherX every 4 days. The most recent releases landed on October 13, 2026 and October 3, 2026 respectively.
| Parameter | Solar Activity | SpaceWeatherX |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Every 4 days — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 33 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Koyushev | Ivan Tokic |
In-app purchases
Solar Activity
No in-app purchases
SpaceWeatherX
- SpaceWeatherX Plus Annual$8.991 Year
Questions
Is Solar Activity free?
Is SpaceWeatherX free?
Do Solar Activity or SpaceWeatherX have ads?
Which is updated more often, Solar Activity or SpaceWeatherX?
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