# 天気図 vs SpinVane

The clearest difference is price: 天気図 at Free against SpinVane's $1.99. 天気図 also leads on iOS requirement (15.6 vs 18.2). SpinVane's advantage is in-app purchases (none vs 4) and ads (none vs shown). On device support there is nothing between them.

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

天気図 ships an update monthly, SpinVane daily. Both last shipped on October 30, 2026.

## The numbers

| Metric | 天気図 | SpinVane |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Daily** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | — | **#44** |
| Size | 63 MB | 10 MB |
| Requires iOS | **15.6** | 18.2 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [hidehiko aihara](https://appshunter.io/developer/1178520609) | [Yu Ikeda](https://appshunter.io/developer/394579323) |

## What reviewers say

### 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 |


### SpinVane

[App page](https://appshunter.io/ios/app/spinvane/id6745381092)

**Currently charting:** #44 Top Paid · Weather (US App Store)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 天気図 free?

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

### Is SpinVane free?

SpinVane costs $1.99, with no in-app purchases.

### Do 天気図 or SpinVane have ads?

天気図 shows ads; SpinVane does not.

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

天気図 ships an update monthly, and SpinVane daily. Most recently, 天気図 was updated on October 30, 2026 and SpinVane on October 30, 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.*