# ダンケ中学公民 vs 倍数plane

The clearest difference is in-app purchases: 倍数plane at none against ダンケ中学公民's 1. 倍数plane also leads on update cadence (every 6 months vs every 22 months) and iOS requirement (15.0 vs 18.2). On price, ads and device support there is nothing between them.

Both are free to download. ダンケ中学公民 sells 1 one-off in-app purchase. 倍数plane asks for nothing beyond the download.

ダンケ中学公民 ships an update every 22 months, 倍数plane every 6 months. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | ダンケ中学公民 | 倍数plane |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | **Every 6 months** |
| Size | 15 MB | 58 MB |
| Requires iOS | 18.2 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Norio Takeda](https://appshunter.io/developer/1485221811) | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) |

## What reviewers say

### ダンケ中学公民

[App page](https://appshunter.io/ios/app/id1598387653)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ゴールドコイン | $7.99 | one-time |


### 倍数plane

[App page](https://appshunter.io/ios/app/plane/id6502582678)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ダンケ中学公民 free?

ダンケ中学公民 is free to download, with in-app purchases available.

### Is 倍数plane free?

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

### Do ダンケ中学公民 or 倍数plane have ads?

Neither ダンケ中学公民 nor 倍数plane shows ads.

### Which is updated more often, ダンケ中学公民 or 倍数plane?

ダンケ中学公民 ships an update every 22 months, and 倍数plane every 6 months. Most recently, ダンケ中学公民 was updated on October 25, 2026 and 倍数plane on October 27, 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.*