Valley Air District vs CA Heat Score
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Valley Air District
Monitor real-time air quality in your neighborhoods with hourly data. Get personalized alerts for changes and wood burning status. Submit pollution complaints and receive episode alerts.
- Hourly air quality data
- Location-based monitoring
- Customizable locations
- Air quality change notifications
- Wood burning status
- Pollution complaint submission
- Air quality episode alerts
Read full descriptionHide full description
App is available in both English and Spanish languages Description: Keep track of current air quality in all of your important neighborhoods with Valley Air, the official app of the San Joaquin Valley Air Pollution Control District. Hourly air quality data is provided by the Real-Time Air Advisory Network (RAAN). Features: - Check air quality information for your current location - Add, remove, and personalize up to 10 additional custom locations - Receive notifications when air quality changes - View the daily residential wood burning status for your county during the Check Before You Burn season - Submit confidential air pollution complaints - Receive alerts during unique air quality episodes The San Joaquin Valley Air Pollution Control District (Valley Air District) is committed to improving the health and quality of life for all Valley residents through effective and cooperative air quality programs. The District includes San Joaquin, Stanislaus, Merced, Madera, Fresno, Tulare, Kings, and the Valley air basin portion of Kern Counties.
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
Read full descriptionHide full description
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 rating: CA Heat Score at 5.0 against Valley Air District's 2.9. CA Heat Score also leads on update cadence (daily vs every 3 months). Valley Air District's advantage is ratings volume (67 vs 1). On price, ads, in-app purchases and monetization model 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.
CA Heat Score holds the better App Store score, 5.0 against 2.9. That said, the two scores are not equally well evidenced: Valley Air District has 67 ratings behind it against 1, so its average is the more settled of the two.
Valley Air District ships an update every 3 months, CA Heat Score daily. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.
| Parameter | Valley Air District | CA Heat Score |
|---|---|---|
| Price | Free | Free |
| Rating | 2.9 (67 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 23.8% of reviews | — |
| Number of ratings | 67 — better | 1 |
| Update frequency | Every 3 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.2 — better | 15.1 |
| Further details — not scored | ||
| Size | 115 MB | 73 MB |
| Age rating | 4+ | 4+ |
| Developer | San Joaquin Valley Air Pollution Control District | Michael Germino |
Customer experience
Valley Air District
CA Heat Score
In-app purchases
Valley Air District
No in-app purchases
CA Heat Score
No in-app purchases
Questions
Is Valley Air District free?
Is CA Heat Score free?
Which has better reviews, Valley Air District or CA Heat Score?
Do Valley Air District or CA Heat Score have ads?
Which is updated more often, Valley Air District or CA Heat Score?
Other comparisons















