# 理科問題3700 vs 金星の満ち欠けAR

The clearest difference is ads: 金星の満ち欠けAR at none against 理科問題3700's shown. 金星の満ち欠けAR also leads on update cadence (every 3 weeks vs every 6 months) and iOS requirement (13.0 vs 15.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

理科問題3700 ships an update every 6 months, 金星の満ち欠けAR every 3 weeks. The most recent releases landed on September 30, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | 理科問題3700 | 金星の満ち欠けAR |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 46.2% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 14 MB | 68 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mejiro Publications](https://appshunter.io/developer/384877298) | [Hiroyuki Nakano](https://appshunter.io/developer/1091174971) |

## What reviewers say

### 理科問題3700

[App page](https://appshunter.io/ios/app/3700/id413622109)

This free science learning app offers 3700 questions across 27 subjects, including basic and advanced topics from middle school to university entrance levels. It features quiz-style learning for general knowledge and includes progress tracking with options to review incorrect answers.

**Highlights:** 3700 science questions, 27 subject categories, Basic to advanced levels, Quiz format, Progress tracking, Review incorrect answers

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

**In-app purchases:** none


### 金星の満ち欠けAR

[App page](https://appshunter.io/ios/app/ar/id1539098847)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 理科問題3700 free?

理科問題3700 is free to download, with no in-app purchases.

### Is 金星の満ち欠けAR free?

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

### Do 理科問題3700 or 金星の満ち欠けAR have ads?

理科問題3700 shows ads; 金星の満ち欠けAR does not.

### Which is updated more often, 理科問題3700 or 金星の満ち欠けAR?

理科問題3700 ships an update every 6 months, and 金星の満ち欠けAR every 3 weeks. Most recently, 理科問題3700 was updated on September 30, 2026 and 金星の満ち欠けAR on September 11, 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.*