Comparison

「ヒロシマの記憶AR」 vs Kanji Drills

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

「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.

Highlights
  • AR/VR historical experience
  • Atomic bombing accounts and materials
  • Pre-bombing Peace Memorial Park visuals
  • Holographic survivor testimony
  • Peace reflection tool
Read full description

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。

About

Kanji Drills

Create custom kanji worksheets for children in grades 1-6, aligned with Japan's official curriculum. Personalize drills to match school pace or focus on difficult characters. Print or share as PDFs without needing physical workbooks.

Highlights
  • Customizable kanji worksheets
  • Aligned with Japanese curriculum (Grades 1-6)
  • Printable and shareable PDFs
  • Three worksheet types (Copy, Dictation, Reading)
  • Four ordering modes
  • Star difficult kanji
  • Authentic Japanese drill layout
Features
Read full description

Custom kanji worksheets fully aligned with Japan's official elementary school curriculum (Grades 1 to 6, 1,026 characters). Designed for Japanese-speaking households at home and abroad - perfect for families using Japanese supplementary schools (hoshuko) or following the domestic curriculum from overseas. Note: The app interface is in Japanese. The worksheets follow the Japanese Ministry of Education kanji curriculum. Match your child's actual school pace, drill 10 kanji at a time, or focus on the ones they struggle with. Personalized worksheets, printable or shareable as PDF, without ever buying another drill book. All 1,026 kanji from Japan's Ministry of Education grade-level curriculum (2020 revision) are included. Choose from three worksheet styles and four ordering modes for endless practice. Built for real study routines - Endless fresh worksheets, so your child never reuses the same drill - Star difficult kanji and have them appear more often - Match the school's pace, or work ahead unit by unit - Save hours of preparation for cram-school teachers - Authentic Japanese drill layout your child will recognise Complete kanji coverage All 1,026 grade-level kanji from Grade 1 through Grade 6, fully aligned with the Japanese Ministry of Education's 2020 revision. Three worksheet types Copy Practice: a model square, traceable squares, and repeat squares to build correct character form. Dictation: write the kanji from hiragana hints, with example phrases for context. Reading: write the correct reading from the kanji. Four ordering modes Curriculum Order: follow the school sequence step by step. Random: get a fresh combination every time. Unit Mode: drill 10 kanji at a time for planned coverage (Pro). Weak-First: prioritize the kanji you starred as difficult (Pro). Authentic print layout - Mincho-style typography close to Japanese school textbooks - Tianzige practice grids for proper character balance - Header with school name, class, student name, date and score - A4 and B5 paper size switching (Pro) - Bundled answer-sheet PDF for fast grading (Pro) Who it is for - Parents of children studying Japanese kanji - Teachers at cram schools, primary schools and tutoring centres - Heritage learners and Japanese-language students - Anyone preparing for the Kanji Kentei exam Pricing Free - One full-quality lifetime trial print - Full preview of every worksheet type - Free choice of grade and ordering mode Pro (monthly or annual) - Unlimited print and PDF generation - Weak-kanji starring - Unit-based ordering - Bundled answer-sheet PDF - A4 and B5 paper size switching - School and class name printed on worksheets - Ad-free experience About the subscription - Pro is a monthly or annual auto-renewing subscription. - It renews automatically at the same price unless cancelled at least 24 hours before the end of the current period. - You can cancel anytime via Settings, Apple ID, Subscriptions on iOS. - Price is shown in the App Store at the time of purchase. Terms of Service and Privacy Policy https://lineocean.com/kanjiworksheetmaker Turn every day into a small "I got it" moment for your child. Start with one worksheet, on us.

Screenshots

「ヒロシマの記憶AR」4 screens
Kanji Drills4 screens

Verdict

The call

The clearest difference is in-app purchases: 「ヒロシマの記憶AR」 at none against Kanji Drills's 3. 「ヒロシマの記憶AR」 also leads on ads (none vs shown) and device support (3 vs 1). Kanji Drills's advantage is review sentiment (100% vs 67%) and update cadence (every 2 weeks vs every 6 months). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Kanji Drills sells 3 in-app purchases, starting at $2.99 per month. 「ヒロシマの記憶AR」 asks for nothing beyond the download.

UpkeepUpdate frequency

「ヒロシマの記憶AR」 ships an update every 6 months, Kanji Drills every 2 weeks. The most recent releases landed on October 24, 2026 and October 20, 2026 respectively.

Scorecard7 real differences · 1 level
「ヒロシマの記憶AR」 versus Kanji Drills: the parameters behind the verdict, then further details
Parameter「ヒロシマの記憶AR」Kanji Drills
PriceFreeFree
Positive reviews66.7% of reviews100.0% of reviews — better
Update frequencyEvery 6 monthsEvery 2 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0 — better18.2
Further details — not scored
Size531 MB10 MB
Age rating4+4+
DeveloperTIMELOOPER INCFumihiro Kawasaki

Customer experience

「ヒロシマの記憶AR」

Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

Kanji Drills

Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

「ヒロシマの記憶AR」

No in-app purchases

3 purchases

Kanji Drills

Subscriptions2
  • Kanji Worksheet Pro – Monthly$2.991 Month
  • Kanji Worksheet Pro – Yearly$24.991 Year
One-time1
  • 全機能を解放(買い切り)$5.99

Questions

Is 「ヒロシマの記憶AR」 free?
「ヒロシマの記憶AR」 is free to download, with no in-app purchases.
Is Kanji Drills free?
Kanji Drills is free to download, with in-app purchases available.
Do 「ヒロシマの記憶AR」 or Kanji Drills have ads?
Kanji Drills shows ads; 「ヒロシマの記憶AR」 does not.
Which is updated more often, 「ヒロシマの記憶AR」 or Kanji Drills?
「ヒロシマの記憶AR」 ships an update every 6 months, and Kanji Drills every 2 weeks. Most recently, 「ヒロシマの記憶AR」 was updated on October 24, 2026 and Kanji Drills on October 20, 2026.

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