# 天気図Viewer vs 天気図

The clearest difference is price: 天気図 at Free against 天気図Viewer's $1.99. 天気図 also leads on iOS requirement (15.6 vs 18.0). 天気図Viewer's advantage is in-app purchases (none vs 4) and ads (none vs shown). On update cadence and device support there is nothing between them.

天気図 is free to download; 天気図Viewer costs $1.99 up front. 天気図 sells 4 one-off in-app purchases. 天気図Viewer asks for nothing beyond the download.

天気図Viewer ships an update every 5 weeks, 天気図 monthly. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 天気図Viewer | 天気図 |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Positive reviews | **75.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 63 MB |
| Requires iOS | 18.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Sakae Ichikawa](https://appshunter.io/developer/1548442585) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### 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


### 天気図

[App page](https://appshunter.io/ios/app/weather-chart/id1605506776)

View weather charts for the past 3 days and up to 48 hours into the future. This application utilizes weather maps from the Japan Meteorological Agency to display various regional and high-altitude analyses and forecasts.

**Highlights:** Past 3-day weather charts, 48-hour weather forecasts, Regional weather maps, High-altitude analysis charts, Japan Meteorological Agency data

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee (Regular) | $0.49 | one-time |
| アプリケーション開発者への応援募金 | $1.99 | one-time |
| Coffee (Large) | $1.99 | one-time |
| Cake Set | $5.99 | one-time |


## Frequently asked questions

### Is 天気図Viewer free?

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

### Is 天気図 free?

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

### Do 天気図Viewer or 天気図 have ads?

天気図 shows ads; 天気図Viewer does not.

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

天気図Viewer ships an update every 5 weeks, and 天気図 monthly. Most recently, 天気図Viewer was updated on September 22, 2026 and 天気図 on September 21, 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.*