ChronoMap vs Memora X 世界史一問一答
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChronoMap
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.
- 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
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ChronoMap traces human history on a single world map and a single timeline. Move through time and the political map redraws itself, with events surfacing right where they happened. What was happening in China — or Japan — while Islam was spreading across the world? You can see it at a glance. ■ An animated atlas of 30,000 years 69 historical maps from 28,000 BC to the present. Press play and borders shift and flow. Switch between linear and logarithmic time scales to take in all thirty millennia at once. ■ 2,794 events and people, every one explained Every entry has a description, and major events have long-form commentary. Causes and consequences are linked, so one lookup leads naturally to the next. About 9,300 entries in total. ■ 52 narrated stories A thousand years of Rome, the Mongols, the Age of Exploration, the Onin War, the fall of the shogunate, the history of philosophy, the history of money, and a 16-volume story of Western art (584 works). The map flies to each scene, campaign routes extend, and borders change as chapters advance. Text-to-speech narration is supported. ■ Blank-map quizzes and drills Fill in a blank map: 195 countries with flags and capitals, Japan's 47 prefectures, 70 ritsuryo provinces, and historical maps from 500 BC to 1920. Drills for history, geography, and ethics offer year-entry and multiple-choice questions, filtered by era, region, and scope (favorites / missed questions). ■ Empires rising and falling Napoleon's France, the Japanese Empire. Guess how far the empire reaches next, tap the map, and watch the animated answer. ■ Relationship trees Eight themes — science, Western art, revolutions and nation-states, philosophy, Chinese history, Japanese history, the Islamic world, medieval Europe — laid out as chronological trees of people and events. ■ Collect cards, then review Answer quizzes correctly to collect event cards. Collected cards enter a spaced-repetition review queue (1 day → 3 days → a week → ...), with an optional daily reminder. ■ Geography built in Köppen climate zones, climographs for 80 cities, descriptions of the world's states and provinces, major rivers and landforms. ■ Search by place Type a place name and about 13,000 places match — cities, countries, regions, mountains, rivers, and historical states. Pick a city to see every power that ruled that spot through history (Paris: Rome → Francia → ... → France) and all events that happened there, across all eras. ■ Fully offline All data is bundled. Every feature works in airplane mode, from the first launch. ■ Japanese and English The entire app switches between Japanese and English with one tap. ■ Easy to trust - No ads, no in-app purchases, no account required - Your study records stay on your device and are never uploaded - No cookies, no identifiers * Historical borders and dates are simplified approximations for learning. Disputed regions and poorly documented eras are especially simplified. * Base map: Natural Earth / Historical borders: simplified from historical-basemaps (GPL-3.0) / Portraits and images: Wikipedia
Memora X 世界史一問一答
This app helps students prepare for university entrance exams by offering a vast collection of world history questions covering 20 years of past papers. It uses a spaced repetition system to aid memorization and allows users to learn through various question formats.
- 20 years of past exam questions
- 4,853 Q&A, 250 timeline, 477 essay questions
- Three difficulty levels
- Four learning modes: horizontal, vertical, timeline, essay
- Spaced repetition system
- Swipe-based interface
- Customizable 'my vocabulary book'
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■ 過去問20年分の用語をカバー Memora Xは、大学受験のための世界史の一問一答アプリです。共通テスト・MARCH・早稲田・慶應の過去問20年分を調べ、出題された用語を集めました。 ・一問一答4,853問/年号250問/論述477問 ・共通テスト・MARCH・早慶の過去問20年分に出た用語を100%カバー ・難しさは3段階。レベルを選んで学べます ■ ヨコ・タテ・年号・論述の4つの切り口 ・ヨコ:単元の順に、通して学ぶ ・タテ:国・地域ごとに、つなげて学ぶ ・年号:出来事と年代をセットで ・論述:設問50字・解答80字の短い論述。模範解答の採点キーワードをタップして自己採点 ■ 覚えた用語がつながる「論述カットイン」 関連する用語を覚えると、それらをつなぐ短い論述問題が学習の途中に割り込みます。用語を点ではなく流れで覚えられます(論述カットインは、プライム会員・プラチナMAX会員の機能です)。 ■ 忘れる前に、もう一度 今日覚えたことの7割は、明日には忘れています。Memora Xは忘れることを前提に設計されています。 ・忘却曲線に合わせて、忘れそうなタイミングで出題 ・間違えたら間隔を縮めて、すぐ出し直し ・5回続けて正解できたら卒業 ・モードは「すべて・暗記・ニガテのみ・未学習」 ■ スワイプで、テンポよく 問題を見て、自信があれば右へ、なければ左へ、まあまあなら下へ。答え合わせもスワイプ。 あとは目の前の1問に集中するだけ。 ■ しおりで、自分だけの「my単語帳」 気になる問題は、学習カードのしおりを押すと「my単語帳」に入ります。一問一答と年号の問題を、まとめて何度でも学習できます(しおりと my単語帳は、プラチナMAX会員の機能です)。 ■ 毎日続けたくなる「連続記録」 ・1日10問解いてボーナスを受け取ると、連続記録が1日のびます ・はじめに「プライム会員継続チケット」をプレゼント。受け取るとすぐプライム会員になり、年号・論述を含む全てのモードを無料で使えます ・毎日10問のログインプレイで、プライム会員が続きます ・毎日100問を続けると「プラチナ会員」。学習中の広告が少なくなります ・その日のログインプレイボーナスをまだ受け取っていないときは、通知でお知らせします ・学習カレンダーで、毎日の回答数・覚えた問題・苦手な問題を振り返り ・会員のホームは黒いデザインに。設定の「会員の黒いテーマ」をオフにすると、いつもの明るい画面で使えます(PRIME などの印はそのまま) ■ 一問一答は全問無料 一問一答の全問題を、無料で使えます。年号・論述は、プライム会員のあいだ無料で使えます。 学習の途中には広告が表示されます(プラチナ会員は少なくなります)。 アカウント登録なし。学習データは端末に保存され、設定から書き出し・読み込みもできます。 ■ プラチナMAX会員(月額プラン) 月額200円の「プラチナMAX会員」なら、広告が表示されず、全てのモードと my単語帳・しおりがいつでも使えます。連続記録が途切れても、プラチナMAX会員のままです。 ・1か月ごとの自動更新です。お支払いは購入の確定時に Apple Account に請求されます ・期間終了の24時間以上前に解約しない限り、自動で更新され、同じ金額が請求されます ・解約は iPhone の「設定」→ Apple Account →「サブスクリプション」からいつでもできます 受験の世界史は、用語で決まる。あなたは覚えることだけに集中してください。 —————————— 利用規約(EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー https://hazardissei.github.io/memorax-pages/sekaishi-privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: ChronoMap at none against Memora X 世界史一問一答's 1. ChronoMap also leads on ads (none vs shown) and review sentiment (80% vs 50%). On price, update cadence, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Memora X 世界史一問一答 sells 1 one-off in-app purchase. ChronoMap asks for nothing beyond the download.
ChronoMap ships an update every 3 days, Memora X 世界史一問一答 every 5 days. The most recent releases landed on October 31, 2026 and November 1, 2026 respectively.
| Parameter | ChronoMap | Memora X 世界史一問一答 |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 80.0% of reviews — better | 50.0% of reviews |
| Update frequency | Every 3 days — better | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 99 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | HOIPOI Co., Ltd. | Issei Sato |
Customer experience
ChronoMap
Memora X 世界史一問一答
In-app purchases
ChronoMap
No in-app purchases
Memora X 世界史一問一答
- プラチナMAX会員(買い切り)$5.99
Questions
Is ChronoMap free?
Is Memora X 世界史一問一答 free?
Do ChronoMap or Memora X 世界史一問一答 have ads?
Which is updated more often, ChronoMap or Memora X 世界史一問一答?
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