# たのしくなる　さんすう１ねん vs 月の満ち欠け

The clearest difference is price: 月の満ち欠け at Free against たのしくなる　さんすう１ねん's $11.99. 月の満ち欠け also leads on device support (3 vs 1). たのしくなる　さんすう１ねん's advantage is ads (none vs shown). On update cadence, in-app purchases and iOS requirement there is nothing between them.

月の満ち欠け is free to download; たのしくなる　さんすう１ねん costs $11.99 up front. Neither carries in-app purchases, so what you see is what you pay.

たのしくなる　さんすう１ねん ships an update every 7 months, 月の満ち欠け every 4 months. The most recent releases landed on November 11, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | たのしくなる　さんすう１ねん | 月の満ち欠け |
| --- | --- | --- |
| Price | $11.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id427074880/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Every 4 months** |
| Size | 60 MB | 84 MB |
| Requires iOS | **9.0** | 10.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KoikeSystemPro Inc.,](https://appshunter.io/developer/426904750) | [Ryota Satoh](https://appshunter.io/developer/1044067151) |

## What reviewers say

### たのしくなる　さんすう１ねん

[App page](https://appshunter.io/ios/app/id427074880)

**Features:** macOS Compatibility

**In-app purchases:** none


### 月の満ち欠け

[App page](https://appshunter.io/ios/app/id1173296473)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is たのしくなる　さんすう１ねん free?

たのしくなる　さんすう１ねん costs $11.99, with no in-app purchases.

### Is 月の満ち欠け free?

月の満ち欠け is free to download, with no in-app purchases.

### Do たのしくなる　さんすう１ねん or 月の満ち欠け have ads?

月の満ち欠け shows ads; たのしくなる　さんすう１ねん does not.

### Which is updated more often, たのしくなる　さんすう１ねん or 月の満ち欠け?

たのしくなる　さんすう１ねん ships an update every 7 months, and 月の満ち欠け every 4 months. Most recently, たのしくなる　さんすう１ねん was updated on November 11, 2026 and 月の満ち欠け on November 2, 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.*