# 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 vs ChronoMap

The clearest difference is review sentiment: ChronoMap at 80% against 世界史 年号 語呂合わせ｜暗記アプリ 受験対策's 33%. ChronoMap also leads on in-app purchases (none vs 3) and ads (none vs shown). On price, update cadence and device support there is nothing between them.

Both are free to download. 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 sells 3 one-off in-app purchases. ChronoMap asks for nothing beyond the download.

世界史 年号 語呂合わせ｜暗記アプリ 受験対策 ships an update every 5 days, ChronoMap every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 | ChronoMap |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | **80.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 37 MB | 99 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hajime App Lab](https://appshunter.io/developer/1704838092) | [HOIPOI Co., Ltd.](https://appshunter.io/developer/6801120710) |

## What reviewers say

### 世界史 年号 語呂合わせ｜暗記アプリ 受験対策

[App page](https://appshunter.io/ios/app/id6760818433)

Master 300 key historical dates with mnemonics and spaced repetition. This app helps students and lifelong learners retain historical events for exams and general knowledge. Progress is tracked visually with motivational elements.

**Highlights:** 300 historical dates with mnemonics, Spaced repetition learning (SM-2 algorithm), Customizable mnemonics and notes, Progress tracking and streaks, Bookmark and random review modes, Visually appealing design

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告削除 | $3.99 | one-time |
| 全問題パック | $3.99 | one-time |
| 広告削除+全問題パック | $5.99 | one-time |


### ChronoMap

[App page](https://appshunter.io/ios/app/chronomap/id6801120707)

Explore human history with an interactive world map and timeline. Witness political borders shift and events unfold in their geographical context. Features narrated stories, quizzes, and detailed information on historical periods and places.

**Highlights:** Animated historical maps from 28,000 BC to present, 2,794 explained historical events and people, 52 narrated historical stories, Blank-map quizzes and drills, Relationship trees for historical themes, Offline access to all data, Spaced-repetition review for collected cards

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

**In-app purchases:** none


## Frequently asked questions

### Is 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 free?

世界史 年号 語呂合わせ｜暗記アプリ 受験対策 is free to download, with in-app purchases available.

### Is ChronoMap free?

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

### Do 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 or ChronoMap have ads?

世界史 年号 語呂合わせ｜暗記アプリ 受験対策 shows ads; ChronoMap does not.

### Which is updated more often, 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 or ChronoMap?

世界史 年号 語呂合わせ｜暗記アプリ 受験対策 ships an update every 5 days, and ChronoMap every 3 days. Most recently, 世界史 年号 語呂合わせ｜暗記アプリ 受験対策 was updated on November 5, 2026 and ChronoMap on October 31, 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.*