# 熱中症警戒計 vs Thermometer

The clearest difference is in-app purchases: 熱中症警戒計 at none against Thermometer's 4. Thermometer's advantage is review sentiment (81% vs 55%) and update cadence (every 5 weeks vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Thermometer sells 4 one-off in-app purchases. 熱中症警戒計 asks for nothing beyond the download.

熱中症警戒計 ships an update every 5 months, Thermometer every 5 weeks. The most recent releases landed on October 8, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 熱中症警戒計 | Thermometer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (29 ratings)](https://appshunter.io/ios/app/thermometer-plus/id1568977443/reviews)** |
| Number of ratings | — | **29** |
| Positive reviews | 55.0% of reviews | **81.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 5 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 62 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Izaki](https://appshunter.io/developer/511591595) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### 熱中症警戒計

[App page](https://appshunter.io/ios/app/id537953117)

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

**In-app purchases:** none


### Thermometer

[App page](https://appshunter.io/ios/app/thermometer-plus/id1568977443)

Displays real-time outdoor temperature, sensible temperature, humidity, and barometric pressure based on your current location. Get accurate meteorological data from nearby stations to plan your day.

**Highlights:** Outdoor temperature display, Sensible temperature, Humidity readings, Barometric pressure, Wind speed and direction, Location-based data

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| 開発者応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


## Frequently asked questions

### Is 熱中症警戒計 free?

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

### Is Thermometer free?

Thermometer is free to download, with in-app purchases available.

### Do 熱中症警戒計 or Thermometer have ads?

Both 熱中症警戒計 and Thermometer show ads.

### Which is updated more often, 熱中症警戒計 or Thermometer?

熱中症警戒計 ships an update every 5 months, and Thermometer every 5 weeks. Most recently, 熱中症警戒計 was updated on October 8, 2026 and Thermometer 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.*