# 気象天気図 vs 天気図Viewer

The clearest difference is price: 気象天気図 at Free against 天気図Viewer's $1.99. 気象天気図 also leads on iOS requirement (15.0 vs 18.0). 天気図Viewer's advantage is ads (none vs shown). On review sentiment, update cadence, in-app purchases and device support there is nothing between them.

気象天気図 is free to download; 天気図Viewer costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

気象天気図 ships an update every 3 weeks, 天気図Viewer every 5 weeks. The most recent releases landed on September 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 気象天気図 | 天気図Viewer |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id393725709/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | **80.0% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | — | Paid |
| Size | 11 MB | 2 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mets R&D Center](https://appshunter.io/developer/393725712) | [Sakae Ichikawa](https://appshunter.io/developer/1548442585) |

## What reviewers say

### 気象天気図

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

**Features:** Vision Pro support

**In-app purchases:** none


### 天気図Viewer

[App page](https://appshunter.io/ios/app/viewer/id1566088405)

Access real-time and forecast weather maps directly from the Japan Meteorological Agency. View various charts, including surface, high-altitude, and numerical forecast maps, with options for printing and zooming. Download maps for offline viewing.

**Highlights:** Access real-time weather maps, View numerical forecast maps, High-altitude weather charts, Print weather maps, Zoom and full-screen display, Download maps for offline use, Wind profiler with GPS integration

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

**In-app purchases:** none


## 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 天気図Viewer free?

天気図Viewer costs $1.99, with no in-app purchases.

### Do 気象天気図 or 天気図Viewer have ads?

気象天気図 shows ads; 天気図Viewer does not.

### Which is updated more often, 気象天気図 or 天気図Viewer?

気象天気図 ships an update every 3 weeks, and 天気図Viewer every 5 weeks. Most recently, 気象天気図 was updated on September 7, 2026 and 天気図Viewer 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.*