Comparison

読書管理CatBook vs BrainDojo

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

Head to head
About

読書管理CatBook

Track your reading progress, including title, author, and reading status. Organize books by series or magazine issues and get reminders for library book returns. Easily add books via ISBN scan.

Highlights
  • Record title, author, volume, notes, and reading progress
  • Organize books by series or magazine issues
  • Library mode with return date reminders
  • ISBN search with camera scanning
  • Save data to CSV
  • Calendar view for reading records
Features
Read full description

・タイトル、著者、巻数、メモ、どこまで読んだか、おもしろさ、日付などを記録することができます。 全て任意の項目です。タイトルだけの記録も可能です。 ・漫画の巻や雑誌の5月号、参考書の第4章と言った本を細かく分類する機能があります。 トップ画面ではタイトルの下に表示され、 今手元にどの巻があるのかなどを参照するのに便利です。 ・無料でお使いいただけます。画面下部にバナー広告があります。 ・ISBN検索機能付き(カメラで読み取る機能をv3.0から追加しました) ・SNS機能はありません ・データをcsv形式で保存することができます。(csvファイルを読み取ることはできません ・データをクリップボードにコピーして、ペーストすることができます。 任意のアプリでシェアしてください。 バージョン2.0より ・読書記録をカレンダーで記録することができるようになりました ・図書館モードを設定することで返却日の一覧を表示、プッシュ通知が受け取れるようになりました バージョン3.0より ・ISBNコードをカメラで読み取る機能を追加しました ・積読を応援!仮登録モードを追加しました。

About

BrainDojo

Engage in daily brain training activities like handwriting and reading aloud to boost focus and cognitive skills. Suitable for all ages, this app offers fun, effective exercises with new content added monthly.

Highlights
  • Handwriting exercises
  • Reading aloud practice
  • Calculation activities
  • Focus improvement
  • Memory enhancement
  • New content monthly
Read full description

Can't focus. Get distracted. Forget things. A daily 10-second brain training habit, for adults. ◯ Why handwriting? Research shows handwriting activates broad sensorimotor regions that tapping or typing cannot reach. ・Mueller & Oppenheimer (2014) — handwritten notes improve memory ・van der Meer et al. (2020, NTNU) — handwriting activates wider brain areas ◯ Train 6 cognitive domains ・Attention — sustained focus ・Memory — working and long-term ・Processing Speed — reaction and judgment ・Executive Function — planning, switching ・Language — reading, writing, thinking ・Visuospatial — spatial awareness 40+ mini-games train these 6 domains, a little every day. ◯ Training matched to you Answer five questions once. What you struggle with (staying focused, forgetting, planning, rushing into mistakes, reading and writing), how much time you have, and when you want to train — your daily set is built from that. ・Trainings that match your struggles come first ・Your daily amount follows the time you have ・Reminders are set for the time you chose ・Redo it anytime from Settings ◯ Brain Dojo Check Once a day, three quick tests measure Processing Speed, Inhibitory Control and Working Memory. Your result is shown as a rank from 10th Kyu to 10th Dan, with a radar chart. ◯ Built for adults who struggle to stay consistent ・Sessions start at 10 seconds ・Quiet by default — no pressure notifications ・Daily completion stamps ・Streaks won't shame you if you miss a day ・A weekly goal, so a missed day can be made up that week ・Start today's training straight from the Home Screen widget ◯ What users say "I can finally keep a habit." "10 seconds in the morning resets my focus." ◯ Free to use All trainings except the newest ones are free to play (with ads). With BrainDojo Plus, ads disappear and every new training is available anytime. ◯ Subscription BrainDojo offers an optional subscription (BrainDojo Plus) for full access to all games and features. If you choose to purchase BrainDojo Plus, payment will be charged to your Apple account, and your account will be charged for renewal within 24-hours prior to the end of the current period. Auto-renewal may be turned off at any time by going to your settings in the App Store after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable. Privacy Policy: https://www.studyx.app/privacy Terms of Service: https://www.studyx.app/terms

Screenshots

読書管理CatBook4 screens
BrainDojo4 screens

Verdict

The call

The clearest difference is in-app purchases: 読書管理CatBook at none against BrainDojo's 3. 読書管理CatBook also leads on iOS requirement (12.0 vs 15.0). BrainDojo's advantage is review sentiment (100% vs 75%) and update cadence (every 10 days vs monthly). On price, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. BrainDojo sells 3 in-app purchases, starting at $6.99 per month. 読書管理CatBook asks for nothing beyond the download.

UpkeepUpdate frequency

読書管理CatBook ships an update monthly, BrainDojo every 10 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

Scorecard5 real differences · 5 level
読書管理CatBook versus BrainDojo: the parameters behind the verdict, then further details
Parameter読書管理CatBookBrainDojo
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyMonthlyEvery 10 days — better
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size82 MB274 MB
Age rating4+4+
DeveloperSumie WatanabeStudyX G.K.

Customer experience

読書管理CatBook

Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

BrainDojo

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

読書管理CatBook

No in-app purchases

3 purchases

BrainDojo

Subscriptions2
  • BrainDojo Plus7 Days trial$6.991 Month
  • BrainDojo Plus7 Days trial$39.991 Year
One-time1
  • Tip$0.99

Questions

Is 読書管理CatBook free?
読書管理CatBook is free to download, with no in-app purchases.
Is BrainDojo free?
BrainDojo is free to download, with in-app purchases available.
Do 読書管理CatBook or BrainDojo have ads?
Both 読書管理CatBook and BrainDojo show ads.
Which is updated more often, 読書管理CatBook or BrainDojo?
読書管理CatBook ships an update monthly, and BrainDojo every 10 days. Most recently, 読書管理CatBook was updated on October 24, 2026 and BrainDojo on October 25, 2026.

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