# 熱中症予報計 vs 週間天気予報 Sunny

The clearest difference is update cadence: 週間天気予報 Sunny at every 2 months against 熱中症予報計's every 5 months. On price, review sentiment, ads and in-app purchases 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, 週間天気予報 Sunny every 2 months. The most recent releases landed on September 16, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 熱中症予報計 | 週間天気予報 Sunny |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (1 ratings)](https://appshunter.io/ios/app/sunny/id1448102526/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **35.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Ad-supported |
| Size | 7 MB | 56 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Takahiro Izaki](https://appshunter.io/developer/511591595) | [NilCraft Inc.](https://appshunter.io/developer/458823527) |

## 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


### 週間天気予報 Sunny

[App page](https://appshunter.io/ios/app/sunny/id1448102526)

This weather app displays daily essential weather and pollen forecasts on a single screen. It accurately captures weather changes using the latest data and is easy to use by setting your area via location information. It's ideal for quickly checking temperature and weather for your busy morning routine.

**Highlights:** Single-screen weather and pollen forecast, High visibility design, Detailed pollen dispersion status, Accurate weather change tracking, Location-based area setting, Quick temperature and weather checks

**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 週間天気予報 Sunny free?

週間天気予報 Sunny is free to download, with no in-app purchases.

### Do 熱中症予報計 or 週間天気予報 Sunny have ads?

Both 熱中症予報計 and 週間天気予報 Sunny show ads.

### Which is updated more often, 熱中症予報計 or 週間天気予報 Sunny?

熱中症予報計 ships an update every 5 months, and 週間天気予報 Sunny every 2 months. Most recently, 熱中症予報計 was updated on September 16, 2026 and 週間天気予報 Sunny on September 22, 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.*