# 月の満ち欠け vs 小学生 理科クイズ・ドリル

The clearest difference is in-app purchases: 月の満ち欠け at none against 小学生 理科クイズ・ドリル's 1. 月の満ち欠け also leads on review sentiment (60% vs 50%) and iOS requirement (10.0 vs 12.0). 小学生 理科クイズ・ドリル's advantage is update cadence (every 6 weeks vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. 小学生 理科クイズ・ドリル sells 1 one-off in-app purchase. 月の満ち欠け asks for nothing beyond the download.

月の満ち欠け ships an update every 4 months, 小学生 理科クイズ・ドリル every 6 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | 月の満ち欠け | 小学生 理科クイズ・ドリル |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 84 MB | 46 MB |
| Requires iOS | **10.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryota Satoh](https://appshunter.io/developer/1044067151) | [Junpei Shimotsu](https://appshunter.io/developer/882299124) |

## What reviewers say

### 月の満ち欠け

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

**Features:** macOS Compatibility

**In-app purchases:** none


### 小学生 理科クイズ・ドリル

[App page](https://appshunter.io/ios/app/4-and/id1493509005)

This free educational app offers 60 science quizzes for elementary school students. With multiple-choice questions, illustrations, and explanations for every problem, it makes learning engaging and helps with test preparation and overcoming difficulties.

**Highlights:** 60 curated science questions for elementary students, Multiple-choice format for fun learning, Illustrations and explanations for all questions, Gold medals for mastering categories, Summary tests for final review, Offline learning capability

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $0.99 | one-time |


## Frequently asked questions

### Is 月の満ち欠け free?

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

### Is 小学生 理科クイズ・ドリル free?

小学生 理科クイズ・ドリル is free to download, with in-app purchases available.

### Do 月の満ち欠け or 小学生 理科クイズ・ドリル have ads?

Both 月の満ち欠け and 小学生 理科クイズ・ドリル show ads.

### Which is updated more often, 月の満ち欠け or 小学生 理科クイズ・ドリル?

月の満ち欠け ships an update every 4 months, and 小学生 理科クイズ・ドリル every 6 weeks. Most recently, 月の満ち欠け was updated on October 24, 2026 and 小学生 理科クイズ・ドリル on October 20, 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.*