「ヒロシマの記憶AR」 vs Japanese Counters Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
「ヒロシマの記憶AR」
Experience historical accounts and materials related to the 1945 Hiroshima atomic bombing and the Peace Memorial Park before the bombing. Features the world's first holographic testimony from a survivor, aiming to inspire reflection on peace.
- AR/VR historical experience
- Atomic bombing accounts and materials
- Pre-bombing Peace Memorial Park visuals
- Holographic survivor testimony
- Peace reflection tool
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広島を拠点に平和活動を行なっているNPO法人ピースカルチャービレッジ（PCV)と世界中の観光地や史跡でAR/VRを活用した体験設計を行うタイムルーパー合同会社と共同で、最新テクノロジーを活用して1945年に広島に投下された原爆に関する体験談や資料、そして投下前の平和記念公園に関する資料をバーチャルに体験できる「ヒロシマの記憶AR」を開発致しました。 また、原爆被爆者として世界中で被爆証言を行う田中稔子さんの当時の体験談を後世に残し、伝承していく目的として、世界初の被爆体験ホログラムをアプリ内に組み込みました。 「ヒロシマの記憶AR」を通して、全ての人が平和に対して考えるきっかけになることを願っています。
Japanese Counters Master
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Japanese Counters Master makes learning Japanese counter words (josuushi) fun — for kids, adults, and Japanese learners alike. Counter words like "ippon," "nihiki," and "sansatsu" are one of the trickiest parts of Japanese. This app helps you master 112 of them, step by step. Every question, option, example, and explanation comes with furigana, so you can learn even if you can't read kanji yet. Features • 4 practice modes: Learn, Text quiz, Listening quiz, Picture quiz • Daily Challenge: 5 fresh questions every day • Time Attack: how many can you answer in 60 seconds? • Levels & XP, streaks, combos and confetti for a game-like feel • Daily quests and a friendly mascot, Jocchan, to guide you • Hear the correct reading with built-in audio • Furigana on everything (toggle on/off) • Dark mode • Game Center achievements (iPhone / iPad)
Screenshots
Verdict
The clearest difference is update cadence: Japanese Counters Master at every 10 days against 「ヒロシマの記憶AR」's every 6 months. 「ヒロシマの記憶AR」's advantage is iOS requirement (11.0 vs 16.4). On price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.
「ヒロシマの記憶AR」 ships an update every 6 months, Japanese Counters Master every 10 days. The most recent releases landed on November 3, 2026 and November 5, 2026 respectively.
| Parameter | 「ヒロシマの記憶AR」 | Japanese Counters Master |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 66.7% of reviews | — |
| Update frequency | Every 6 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 11.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 531 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | TIMELOOPER INC | Hatsuhito Shimizu |
In-app purchases
「ヒロシマの記憶AR」
No in-app purchases
Japanese Counters Master
No in-app purchases
Questions
Is 「ヒロシマの記憶AR」 free?
Is Japanese Counters Master free?
Do 「ヒロシマの記憶AR」 or Japanese Counters Master have ads?
Which is updated more often, 「ヒロシマの記憶AR」 or Japanese Counters Master?
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