# 気象天気図 vs 週間天気予報 Sunny

The clearest difference is review sentiment: 気象天気図 at 81% against 週間天気予報 Sunny's 33%. 気象天気図 also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 2). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. 週間天気予報 Sunny sells 2 in-app purchases, starting at $8.99 per 7 days. 気象天気図 asks for nothing beyond the download.

気象天気図 holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews point the same way: 81% of 気象天気図's written reviews are positive against 33% of 週間天気予報 Sunny's.

気象天気図 ships an update every 3 weeks, 週間天気予報 Sunny every 3 months. The most recent releases landed on November 1, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | 気象天気図 | 週間天気予報 Sunny |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id393725709/reviews)** | [3.0 (1 ratings)](https://appshunter.io/ios/app/sunny/id1448102526/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | **81.0% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | — | Free with in-app purchases |
| Size | 14 MB | 98 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mets R&D Center](https://appshunter.io/developer/393725712) | [NilCraft Inc.](https://appshunter.io/developer/458823527) |

## What reviewers say

### 気象天気図

[App page](https://appshunter.io/ios/app/id393725709)

**Features:** 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 provides essential daily weather and pollen forecasts on a single screen. It offers high visibility, detailed pollen information, and supports various planning needs from daily outfits to leisure activities. It's designed for ease of use and comprehensive weather insights.

**Highlights:** Single-screen weather and pollen forecast, Detailed pollen dispersion status, Daily outfit and leisure planning support, Location-based area setting, High visibility design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sunny プレミアム（1週間） | $8.99 | per 7 days |
| Sunny プレミアム（1か月） | $31.99 | per month |


## Frequently asked questions

### Is 気象天気図 free?

気象天気図 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 in-app purchases available.

### Which has better reviews, 気象天気図 or 週間天気予報 Sunny?

気象天気図 is rated higher. 気象天気図 averages 5.0 out of 5 from 2 ratings, while 週間天気予報 Sunny averages 3.0 from 1 ratings.

### Do 気象天気図 or 週間天気予報 Sunny have ads?

Both 気象天気図 and 週間天気予報 Sunny show ads.

### Which is updated more often, 気象天気図 or 週間天気予報 Sunny?

気象天気図 ships an update every 3 weeks, and 週間天気予報 Sunny every 3 months. Most recently, 気象天気図 was updated on November 1, 2026 and 週間天気予報 Sunny on November 6, 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.*