# MyPOTEKA vs 天気図

The clearest difference is in-app purchases: MyPOTEKA at none against 天気図's 4. MyPOTEKA also leads on ads (none vs shown). 天気図's advantage is review sentiment (50% vs 16%) and update cadence (monthly vs every 8 months). On price and iOS requirement there is nothing between them.

Both are free to download. 天気図 sells 4 one-off in-app purchases. MyPOTEKA asks for nothing beyond the download.

MyPOTEKA ships an update every 8 months, 天気図 monthly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | MyPOTEKA | 天気図 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 15.8% of reviews | **50.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 8 months | **Monthly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 17 MB | 63 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [明星電気株式会社](https://appshunter.io/developer/1227993854) | [hidehiko aihara](https://appshunter.io/developer/1178520609) |

## What reviewers say

### MyPOTEKA

[App page](https://appshunter.io/ios/app/mypoteka/id1227993855)

This app provides quick access to local weather information to help you prepare for daily life. It supports disaster mitigation for heavy summer rains and heatstroke, and allows you to check the weather before going out.

**Highlights:** Local weather information, Disaster mitigation support, Heatstroke alerts, Pre-outing weather checks, Daily life support

**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 MyPOTEKA free?

MyPOTEKA is free to download, with no in-app purchases.

### Is 天気図 free?

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

### Do MyPOTEKA or 天気図 have ads?

天気図 shows ads; MyPOTEKA does not.

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

MyPOTEKA ships an update every 8 months, and 天気図 monthly. Most recently, MyPOTEKA was updated on October 24, 2026 and 天気図 on October 25, 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.*