# Space Weather Forecast vs CA Heat Score

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.

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.

## The numbers

| Metric | Space Weather Forecast | CA Heat Score |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ca-heat-score/id6760856821/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Daily** |
| Monetization | — | Free |
| Size | 18 MB | 73 MB |
| Requires iOS | 26.2 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Toru Kawaguchi](https://appshunter.io/developer/1063198642) | [Michael Germino](https://appshunter.io/developer/1886547523) |

## What reviewers say

### Space Weather Forecast

[App page](https://appshunter.io/ios/app/space-weather-forecast/id6760605769)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### CA Heat Score

[App page](https://appshunter.io/ios/app/ca-heat-score/id6760856821)

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.

**Highlights:** Daily heat scores (0-4 scale), Interactive heatmap, 7-day heat score forecasts, Location detection, Heat safety guidance, ZIP code demographics

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Space Weather Forecast free?

Space Weather Forecast is free to download, with no in-app purchases.

### Is CA Heat Score free?

CA Heat Score is free to download, with no in-app purchases.

### Do Space Weather Forecast or CA Heat Score have ads?

Space Weather Forecast shows ads; CA Heat Score does not.

### Which is updated more often, Space Weather Forecast or CA Heat Score?

Space Weather Forecast ships an update every 2 months, and CA Heat Score daily. Most recently, Space Weather Forecast was updated on October 28, 2026 and CA Heat Score on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*