Space Weather Forecast vs CA Heat Score
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Space Weather Forecast
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Space Weather Forecast lets you easily monitor current space weather conditions affecting Earth. This app combines key indicators of solar activity into one simple dashboard so you can quickly understand the current space environment. FEATURES • Today's Space Weather See an easy-to-understand summary of current space weather conditions with a simple ranking system. • Tomorrow's Forecast Get a quick prediction of expected space weather activity for the next day. • Solar Flare Monitor Track the latest solar X-ray flux measurements and flare classifications. • Solar Wind Monitor View real-time solar wind speed, density, and temperature measurements. • Geomagnetic Kp Index Monitor geomagnetic storm activity with the global Kp index. • Space Weather Impact Understand how solar activity may affect GPS accuracy, radio communication, and aurora visibility. DATA SOURCES Space weather data is provided by international space weather monitoring services. Perfect for: • Space enthusiasts • Aurora watchers • Amateur radio operators • Satellite observers • Anyone curious about solar activity Stay aware of the Sun’s activity and its impact on Earth.
CA Heat Score
Understand daily heat risk across California with real-time scores, forecasts, and safety guidance. Explore an interactive map and get detailed information for any ZIP code.
- Daily heat scores (0-4 scale)
- Interactive heatmap
- 7-day heat score forecasts
- Location detection
- Heat safety guidance
- ZIP code demographics
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CA Heat Score makes it easy to understand your daily heat risk anywhere in California. Built on publicly available data from the California Office of Environmental Health Hazard Assessment (OEHHA), this app delivers heat scores, forecasts, and safety guidance in a clean, intuitive interface. DAILY HEAT SCORES Check the current heat score for any California ZIP code on a scale of 0 to 4. Each score comes with a clear risk label — from Low to Severe — so you know exactly what to expect before heading outside. INTERACTIVE HEATMAP Explore an interactive map of California with color-coded heat scores for every ZIP code. Tap any area to see its heat score, current temperature, and demographics. Use the built-in date picker to view forecasted heat scores up to 7 days. 7-DAY HEAT FORECAST Plan your week with daily heat score forecasts. See how heat risk is expected to change over the next 7 days, along with forecasted high and low temperatures for each day. LOCATION-AWARE The app detects your location and shows the heat score for your current ZIP code. Change locations at any time by searching for any California ZIP code. HEAT SAFETY GUIDANCE Learn what each heat score level means for your health and safety. Get actionable tips for staying safe during high heat events, including advice for vulnerable populations, outdoor workers, and caregivers. ZIP CODE DETAILS View detailed information for any ZIP code including population, age distribution, and race/ethnicity demographics — helping you understand the communities most impacted by extreme heat. SCORE HISTORY Track heat score trends over the past week to understand how conditions have been changing in your area. KEY FEATURES -Heat scores for every California ZIP code (0-4 scale) -Interactive heatmap with color-coded risk levels -7-day heat score and temperature forecasts -Forecast date picker on the map -Current temperature and conditions -Location detection with ZIP code search -Heat safety guidance and tips -ZIP code demographics and population data -Score history tracking -Dynamic themed backgrounds -User location shown on map ABOUT THE DATA All heat score data comes from publicly available sources provided by the California Office of Environmental Health Hazard Assessment (OEHHA). CA Heat Score is an independent app and is not affiliated with or endorsed by OEHHA or the official CalHeatScore program or the state of California. Weather data is provided by Open-Meteo. Stay informed. Stay safe. Know your heat risk.
Screenshots
Verdict
The clearest difference is ads: CA Heat Score at none against Space Weather Forecast's shown. CA Heat Score also leads on update cadence (daily vs every 2 months) and iOS requirement (15.1 vs 26.2). On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Space Weather Forecast ships an update every 2 months, CA Heat Score daily. The most recent releases landed on October 28, 2026 and October 19, 2026 respectively.
| Parameter | Space Weather Forecast | CA Heat Score |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months | Daily — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 26.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 18 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | Toru Kawaguchi | Michael Germino |
In-app purchases
Space Weather Forecast
No in-app purchases
CA Heat Score
No in-app purchases
Questions
Is Space Weather Forecast free?
Is CA Heat Score free?
Do Space Weather Forecast or CA Heat Score have ads?
Which is updated more often, Space Weather Forecast or CA Heat Score?
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