# 熱中症予報計 vs 黒球式熱中症計

The clearest difference is review sentiment: 熱中症予報計 at 35% against 黒球式熱中症計's 0%. 黒球式熱中症計's advantage is ads (none vs shown) and iOS requirement (9.0 vs 15.6). On price, update cadence, 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.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 熱中症予報計 | 黒球式熱中症計 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **35.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | Every 5 months |
| Size | 7 MB | 15 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Izaki](https://appshunter.io/developer/511591595) | [TANITA Corporation](https://appshunter.io/developer/473913006) |

## 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


### 黒球式熱中症計

[App page](https://appshunter.io/ios/app/id1469023469)

**Features:** macOS Compatibility, 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 黒球式熱中症計 free?

黒球式熱中症計 is free to download, with no in-app purchases.

### Do 熱中症予報計 or 黒球式熱中症計 have ads?

熱中症予報計 shows ads; 黒球式熱中症計 does not.

### Which is updated more often, 熱中症予報計 or 黒球式熱中症計?

熱中症予報計 ships an update every 5 months, and 黒球式熱中症計 every 5 months. Most recently, 熱中症予報計 was updated on November 1, 2026 and 黒球式熱中症計 on November 3, 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.*