# 世界史年号問題 vs わせジュール

The clearest difference is in-app purchases: わせジュール at none against 世界史年号問題's 1. わせジュール also leads on ads (none vs shown) and update cadence (every 9 days vs every 3 weeks). On price, review sentiment, device support and iOS requirement there is nothing between them.

Both are free to download. 世界史年号問題 sells 1 one-off in-app purchase. わせジュール asks for nothing beyond the download.

世界史年号問題 ships an update every 3 weeks, わせジュール every 9 days. The most recent releases landed on September 26, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | 世界史年号問題 | わせジュール |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id6479050214/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | **82.0% of reviews** | 81.8% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 9 days** |
| Size | 15 MB | 117 MB |
| Requires iOS | **16.6** | 17.6 |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Akira Fujisawa](https://appshunter.io/developer/1533514621) | [shun yazawa](https://appshunter.io/developer/1729067291) |

## What reviewers say

### 世界史年号問題

[App page](https://appshunter.io/ios/app/id1591797286)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示 | $4.99 | one-time |


### わせジュール

[App page](https://appshunter.io/ios/app/id6479050214)

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

**In-app purchases:** none


## Frequently asked questions

### Is 世界史年号問題 free?

世界史年号問題 is free to download, with in-app purchases available.

### Is わせジュール free?

わせジュール is free to download, with no in-app purchases.

### Do 世界史年号問題 or わせジュール have ads?

世界史年号問題 shows ads; わせジュール does not.

### Which is updated more often, 世界史年号問題 or わせジュール?

世界史年号問題 ships an update every 3 weeks, and わせジュール every 9 days. Most recently, 世界史年号問題 was updated on September 26, 2026 and わせジュール on July 5, 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.*