# 世界史　流れで覚える一問一答 vs 改 理解を深める 核心古文単語351

The clearest difference is ads: 改 理解を深める 核心古文単語351 at none against 世界史　流れで覚える一問一答's shown. 改 理解を深める 核心古文単語351 also leads on update cadence (every 3 days vs fortnightly) and iOS requirement (10.0 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.

世界史　流れで覚える一問一答 ships an update fortnightly, 改 理解を深める 核心古文単語351 every 3 days. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 世界史　流れで覚える一問一答 | 改 理解を深める 核心古文単語351 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 86.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Fortnightly | **Every 3 days** |
| Size | 39 MB | 22 MB |
| Requires iOS | 15.6 | **10.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Masatomo Fukuda](https://appshunter.io/developer/1599921920) | [SYOBUN SHUPPAN CO.LTD.](https://appshunter.io/developer/1224576325) |

## What reviewers say

### 世界史　流れで覚える一問一答

[App page](https://appshunter.io/ios/app/id1611543489)

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

**In-app purchases:** none


### 改 理解を深める 核心古文単語351

[App page](https://appshunter.io/ios/app/351/id6444208641)

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

**In-app purchases:** none


## Frequently asked questions

### Is 世界史　流れで覚える一問一答 free?

世界史　流れで覚える一問一答 is free to download, with no in-app purchases.

### Is 改 理解を深める 核心古文単語351 free?

改 理解を深める 核心古文単語351 is free to download, with no in-app purchases.

### Do 世界史　流れで覚える一問一答 or 改 理解を深める 核心古文単語351 have ads?

世界史　流れで覚える一問一答 shows ads; 改 理解を深める 核心古文単語351 does not.

### Which is updated more often, 世界史　流れで覚える一問一答 or 改 理解を深める 核心古文単語351?

世界史　流れで覚える一問一答 ships an update fortnightly, and 改 理解を深める 核心古文単語351 every 3 days. Most recently, 世界史　流れで覚える一問一答 was updated on October 30, 2026 and 改 理解を深める 核心古文単語351 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.*