# 熱中症アラート vs 花粉 週間予報

The clearest difference is in-app purchases: 熱中症アラート at none against 花粉 週間予報's 5. 熱中症アラート also leads on ads (none vs shown) and iOS requirement (7.0 vs 15.6). 花粉 週間予報's advantage is update cadence (every 3 weeks vs every 12 months). On price, review sentiment and device support there is nothing between them.

Both are free to download. 花粉 週間予報 sells 5 in-app purchases, starting at $2.99 per month. 熱中症アラート asks for nothing beyond the download.

熱中症アラート ships an update every 12 months, 花粉 週間予報 every 3 weeks. The most recent releases landed on October 13, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 熱中症アラート | 花粉 週間予報 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **57.1% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 12 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 2 MB | 73 MB |
| Requires iOS | **7.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [日本気象株式会社](https://appshunter.io/developer/517668176) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### 熱中症アラート

[App page](https://appshunter.io/ios/app/id836424089)

This app provides real-time heatstroke risk levels based on the heatstroke index. It offers notifications and advice from a weather mascot, with customizable settings for regions and alert thresholds. Data is updated every 10 minutes.

**Highlights:** Real-time heatstroke risk levels, Customizable notifications, Heatstroke index graph, Weather mascot advice, Region-specific settings, 10-minute data updates

**Features:** Vision Pro support

**In-app purchases:** none


### 花粉 週間予報

[App page](https://appshunter.io/ios/app/id6478220308)

Get real-time pollen forecasts across Japan to plan your outings with confidence. View daily pollen levels in easy-to-understand graphs and check the weekly forecast to prepare for high pollen days. Save your favorite locations for quick access to local pollen information.

**Highlights:** Nationwide pollen information, Daily pollen levels graph, Weekly pollen forecast, Register favorite locations, Real-time pollen data

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告停止 | $2.99 | per month |
| Coffee (Regular) | $0.49 | one-time |
| Coffee (Large) | $1.99 | one-time |
| システム改善応援募金 | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


## Frequently asked questions

### Is 熱中症アラート free?

熱中症アラート is free to download, with no in-app purchases.

### Is 花粉 週間予報 free?

花粉 週間予報 is free to download, with in-app purchases available.

### Do 熱中症アラート or 花粉 週間予報 have ads?

花粉 週間予報 shows ads; 熱中症アラート does not.

### Which is updated more often, 熱中症アラート or 花粉 週間予報?

熱中症アラート ships an update every 12 months, and 花粉 週間予報 every 3 weeks. Most recently, 熱中症アラート was updated on October 13, 2026 and 花粉 週間予報 on October 25, 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.*