# 熱中症予報計 vs 熱中症警戒

The clearest difference is ads: 熱中症警戒 at none against 熱中症予報計's shown. 熱中症警戒 also leads on update cadence (every 2 days vs every 5 months). 熱中症予報計's advantage is iOS requirement (15.6 vs 26.5). 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.

熱中症予報計 ships an update every 5 months, 熱中症警戒 every 2 days. The most recent releases landed on October 29, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 熱中症予報計 | 熱中症警戒 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 35.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 days** |
| Size | 7 MB | 6 MB |
| Requires iOS | **15.6** | 26.5 |
| Devices | iPhone, iPod | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Izaki](https://appshunter.io/developer/511591595) | [Keisuke Kanno](https://appshunter.io/developer/6788882160) |

## What reviewers say

### 熱中症予報計

[App page](https://appshunter.io/ios/app/id647598956)

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

**In-app purchases:** none


### 熱中症警戒

[App page](https://appshunter.io/ios/app/id6788881948)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 熱中症予報計 free?

熱中症予報計 is free to download, with no in-app purchases.

### Is 熱中症警戒 free?

熱中症警戒 is free to download, with no in-app purchases.

### Do 熱中症予報計 or 熱中症警戒 have ads?

熱中症予報計 shows ads; 熱中症警戒 does not.

### Which is updated more often, 熱中症予報計 or 熱中症警戒?

熱中症予報計 ships an update every 5 months, and 熱中症警戒 every 2 days. Most recently, 熱中症予報計 was updated on October 29, 2026 and 熱中症警戒 on October 17, 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.*