# 世界史年号問題 vs Chuinfo

The clearest difference is in-app purchases: Chuinfo at none against 世界史年号問題's 1. Chuinfo also leads on ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | 世界史年号問題 | Chuinfo |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 82.0% of reviews | **85.7% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | — | Free |
| Size | 15 MB | 17 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Akira Fujisawa](https://appshunter.io/developer/1533514621) | [YUSUKE MIZUNO](https://appshunter.io/developer/1729948508) |

## 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 |


### Chuinfo

[App page](https://appshunter.io/ios/app/chuinfo/id6670358906)

This app streamlines university life for students by integrating with web services for automatic login, timetable retrieval, and assignment tracking. It offers push notifications for deadlines and allows timetable sharing with friends. Widgets provide quick access to schedules and class information.

**Highlights:** Automatic login to university web services, Automatic timetable and class information retrieval, Assignment tracking with deadline notifications, Timetable sharing with friends, Home screen widgets for timetable and next class, Direct access to assignment submission pages

**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 Chuinfo free?

Chuinfo is free to download, with no in-app purchases.

### Do 世界史年号問題 or Chuinfo have ads?

世界史年号問題 shows ads; Chuinfo does not.

### Which is updated more often, 世界史年号問題 or Chuinfo?

世界史年号問題 ships an update every 3 weeks, and Chuinfo every 3 weeks. Most recently, 世界史年号問題 was updated on September 22, 2026 and Chuinfo on September 21, 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.*