TextbookDojo vs Kizki
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TextbookDojo
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TextbookDojo is an app for "Memorization sheet". The "Memorization sheet" is a Japanese style memorization method. TextbookDojo means "memorize everything" in Japanese. With this method, you first hide the strings you want to remember from a textbook or notebook, and later see repeatedly if you have remembered them. This app turns memorization sheets into flashcards. Recommended for students studying medicine, law, geography, foreign languages, economics, programming, etc. These are fields that require a lot of memorization. # Main Features - Memorize textbooks and problem books by hiding the parts you want to remember. - Automatic AI-based Important Phrase Marking Feature - Supports memorization of question collections with questions and answers separated from each other - Voice recording and playback function - Free drawing function - By automatically alternating playback of questions and answers, memorization can be done without manipulating the flashcards. - Intensive memorization of weak points. - By adjusting the playback speed of the flashcards, you can memorize them at high speed. - Test questions based on the forgetting curve allow you to concentrate on memorizing the questions you have difficulty with. - An automatic zoom function allows non-stress memorization even for those who have difficulty with small letters or presbyopia. - Pages can be imported from PDF/photo/camera. - You can share books and markers with your friends. - You can create an unlimited number of books, pages, and markers for free. === Other details === # Premium Features - In the free version, ads are displayed during memorization. In the Premium version, no ads are displayed. # About Premium The Premium version has no advertisements and no functional limitations. Premium monthly fee: $4.49 Premium yearly fee: $32.99 *It will automatically renew within 24 hours before the end of the term. - Payment Method Payment is charged to your iTunes account. - Cancel Auto-Renewal Auto renewal billing settings must be cancelled at least 24 hours prior to the end of the one-month or one-year subscription period. Cancellation during the period is not allowed. Auto-renewal billing will be done at least 24 hours prior to the end of the term. - How to cancel auto-renewal 1. open the "Settings" application. 2. tap your name. 3. tap "Subscribe". 4. your iPhone will display the "Subscriptions" menu option in "Settings". 5. tap the subscription you wish to manage. 6. tap Cancel Subscription. - Restore when changing devices If you change devices, you can restore your previously purchased paid version for free; just sign in again with the account you used with TextbookDojo. Privacy Policy https://www.fukurobo.com/others-en.html#privacy Terms of Use https://www.fukurobo.com/others-en.html#legalnotice
Kizki
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子どもの成長は、ほんのささいな瞬間の積み重ね。 その “かけがえのない瞬間” を見逃さずに残すための、成長記録アプリが Kizki です。 Kizki は、 ・入力画面でその日の気づきをすぐに記録 ・カレンダーでいつどんな記録があったかひと目で確認 ・子ども・生徒ごとに時系列の成長ログを整理して閲覧 ・データのエクスポート・インポートにも対応 忙しい毎日の中でも、 小さな変化に気づき、未来へ残すための “まなざしの道具” としてお使いいただけます。 【主な機能】 ■入力(Input) ・日付を選んで、すぐに記録を追加 ・名前を登録し、子どもごとに管理 ・必要最低限のシンプル操作でストレスなく入力 ■ カレンダー表示 ・ひと月の記録を一覧で確認 ・記録がある日にマークが表示 ・日付をタップして詳細を閲覧 ■ 記録一覧 ・記録を表形式で整理 ・長文のメモも読みやすく表示 ・期間を設定し、コピー出力可能 ■ 子どもリスト ・子ども/生徒ごとに記録を集約 ・個別の成長の流れを確認できる ■ データ管理(設定) ・エクスポートでバックアップ ・インポートでデータ復元 ・iCloud Drive 等へ保存可能 【こんな方におすすめ】 子どもの成長をしっかり残しておきたい保護者 日々の変化を記録しておきたい先生 育児日記や保育記録が続かなかった人 シンプルで使いやすい記録アプリを探している方
Screenshots
Verdict
The clearest difference is in-app purchases: Kizki at none against TextbookDojo's 3. Kizki also leads on ads (none vs shown). TextbookDojo's advantage is update cadence (every 9 days vs every 3 weeks). On price, 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. TextbookDojo sells 3 in-app purchases, starting at $4.49 per month. Kizki asks for nothing beyond the download.
TextbookDojo ships an update every 9 days, Kizki every 3 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | TextbookDojo | Kizki |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 days — better | Every 3 weeks |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 102 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | ROBOBO, K.K. | Kanji Goto |
In-app purchases
TextbookDojo
- 1 month payment$4.491 Month
- 1 year payment$19.991 Year
- プレミアム年払い(期間限定特別価格)$19.991 Year
Kizki
No in-app purchases









