Comparison

Red Sheet vs Sengata Dojo

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

Head to head
About

Red Sheet

Create and study flashcards from your PDFs, notes, and images. This app lets you hide and reveal text to transform study materials into interactive flashcards for faster memorization. Supports various import options and flexible study tools.

Highlights
  • Create flashcards from PDFs
  • Import from note apps and cloud storage
  • Hide and reveal text for study
  • Create flashcards from photos and images
  • Vocabulary and word list flashcards
  • One-tap show/hide for quick review
Features
Read full description

◆ All-in-One PDF Memorization App with Red Sheet Study Turn your PDFs, notes, textbooks, handouts, and images into powerful study materials. This app helps students memorize faster by hiding and revealing important parts of their own documents. Import PDF files, photos, scanned notes, class handouts, worksheets, and study materials, then create memorization blocks directly on the page. It works like a digital red sheet, flashcard maker, and PDF study tool in one simple app. ◆ PDF Memorization Made Simple ・Import PDF files and study directly from the page ・Hide words, definitions, formulas, diagrams, and answers ・Tap to reveal hidden areas while reviewing ・Use red sheet style memorization on PDF pages ・Study textbooks, school handouts, exam materials, and notes ・Create your own PDF memorization notebook If you already study with PDFs, this app turns them into active memorization tools. ◆ Red Sheet Style Study for PDFs and Images Use memorization blocks to cover the parts you want to remember. Place blocks over text, formulas, diagrams, definitions, answers, or explanations. ・Hide text like using a red sheet ・Reveal answers by tapping ・Create blocks anywhere on a PDF or image ・Adjust block size by dragging the edges ・Change the color and style of blocks ・Use blocks for notes, textbooks, worksheets, and scanned documents This is useful when you want to memorize from your own materials without rewriting everything into separate flashcards. ◆ Smooth Vertical Review for Memorization Review multiple PDF pages and images smoothly. Vertical scrolling makes it easy to study long documents, like moving a red sheet from top to bottom. ・Scroll vertically through study pages ・Review many PDF pages at once ・Memorize photos and handouts continuously ・Swipe between pages and cards ・Add more images when needed ・Study at your own pace Useful for test prep, school study, certification exams, language learning, and daily review. ◆ Useful Study Tools ・One-tap show and hide for fast review ・Multiple memorization blocks for one page ・Auto-align blocks for cleaner layouts ・Zoom in with two fingers to study small text ・Hidden areas stay aligned even when zooming ・Add memo text to support memorization ・Hide memo text for self-testing ・Organize study decks by title or subject Create separate study materials for English, science, history, math, medical terms, law, certification exams, or any subject that requires memorization. ◆ Great For ・Students preparing for tests and exams ・PDF study and textbook review ・Vocabulary memorization ・Language learning ・Science, history, math, and social studies ・Certification exam preparation ・Medical, legal, and technical study ・People who want a simple flashcards maker ・Students who use GoodNotes, notes apps, or PDF files ・Anyone who wants to memorize from their own materials ◆ How to Use 1. Import a PDF file, photo, or image 2. Place memorization blocks over the parts you want to hide 3. Tap to reveal the answer while studying 4. Repeat until you can remember it 5. Organize your materials by subject and review again ◆ Why This App Is Different This app focuses on PDF memorization and red sheet style study. You do not need to recreate every page from scratch. Use your own PDFs, notes, handouts, images, and textbooks as they are, then hide only the parts you want to memorize. It is a simple way to turn everyday study materials into flashcard-style memorization tools. ◆ Recommended If You Want ・A PDF study app for memorization ・A flashcards maker from PDFs ・A red sheet style study app ・A way to memorize school notes and handouts ・A simple tool for exam preparation ・A study app that works with your own materials ・A faster way to hide and reveal answers Start studying your own PDFs, notes, and images with red sheet style memorization. Make your study materials easier to review, repeat, and remember. Terms of Service https://hidevoicy.com/en/tos Privacy Policy https://hidevoicy.com/en/privacy

About

Sengata Dojo

Features
Read full description

駒の動かし方は知っている。でも序盤で何をすればいいか分からない——そんな将棋ファンのための学習アプリです。 四間飛車+美濃囲い、相矢倉、原始棒銀、角換わり早繰り銀、相掛かり、横歩取り、石田流、居飛車穴熊、向かい飛車、中飛車。定番の戦型10種を収録し、実戦さながらの盤面で一手ずつ並べて学べます。 盤面はルールに忠実。自動再生、指し手タップでの局面ジャンプ、駒がすっと動くアニメーション、直前の手のハイライト、持ち駒表示、王手の表示まで、実際に盤に向かって並べているような感覚で復習できます。 各戦型には狙い・長所・弱点・一手のコツを簡潔な文章で解説。丸暗記ではなく、なぜその手を指すのかを理解しながら定跡を身につけられます。 道場モードでは局面から戦型名を当てるクイズに挑戦。連続正解数・自己ベスト・正答率が記録され、自分の理解度を確かめながら繰り返し学べます。 覚えた戦型は、自分の言葉で投稿できます。3ステップの投稿フローは指せる手しか受け付けない本格盤面で、成れる場面ではきちんと確認が入り、持ち駒も打てます。投稿はサーバーで共有され、いいねや保存を通じて他の指し手と知見を交わせます。通報・ブロック機能とアカウント削除も備え、安心して使えます。 ■ 無料でできること ・人気上位5戦型の手順と解説をすべて閲覧 ・道場(クイズ)モード ・自分の戦型の投稿と、自分の投稿の閲覧 ■ 戦型道場 Pro(自動更新サブスクリプション) ・収録戦型のすべてと、他の方の投稿すべてを閲覧 ・道場の出題が全戦型に広がります ・月額 5.00 米ドル / 年額 30.00 米ドル(お住まいの国・地域の価格は App Store の表示に従います) お支払いは登録の確定時に Apple ID に請求されます。期間終了の24時間以上前に自動更新を解除しない限り、同じ期間・同じ価格で自動更新され、更新の24時間前以内に請求されます。自動更新の解除・プランの変更は、端末の「設定」→ Apple ID →「サブスクリプション」からいつでも行えます。 広告は一切ありません。棋書を読むように、静かに、自分のペースで定跡と向き合いたい方へ。 利用規約(EULA):https://zkf7qvfgkiyer6vcpobvp-web.rork.live/terms プライバシーポリシー:https://zkf7qvfgkiyer6vcpobvp-web.rork.live/privacy 序盤の一手に迷わなくなる、その一歩をここから。

Screenshots

Red Sheet4 screens
Sengata Dojo4 screens

Verdict

The call

The clearest difference is ads: Sengata Dojo at none against Red Sheet's shown. Red Sheet's advantage is device support (4 vs 2) and iOS requirement (13.0 vs 18.0). On price and in-app purchases 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. Red Sheet sells 7 in-app purchases, starting at $2.99 per month and Sengata Dojo sells 2 in-app purchases, starting at $5.00 per month. Whichever you choose, the download price is not the number that matters.

Scorecard3 real differences · 7 level
Red Sheet versus Sengata Dojo: the parameters behind the verdict, then further details
ParameterRed SheetSengata Dojo
PriceFreeFree
Rating4.2 (5 ratings) — better—
Positive reviews77.8% of reviews—
Number of ratings5 — better—
Update frequencyEvery 3 days—
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad
Requires iOS13.0 — better18.0
Further details — not scored
Size193 MB15 MB
Age rating4+4+
DeveloperFoodmenu.world Inc.Naoya Yamashita

In-app purchases

7 purchases

Red Sheet

Subscriptions7
  • Monthly Special plan$2.991 Month
  • Monthly Super Saver Plan$2.991 Month
  • Monthly Value Plan$3.991 Month
Show 4 more
  • Basic Plan$5.991 Month
  • 3 Month Plan - V 3.1.5 needed$9.993 Months
  • Half year plan (Sale)$17.996 Months
  • Half year plan - V2.9.0 needed$22.996 Months
2 purchases

Sengata Dojo

Subscriptions2
  • Sengata Dojo Pro (Monthly)$5.001 Month
  • Sengata Dojo Pro (Yearly)$30.001 Year

Questions

Is Red Sheet free?
Red Sheet is free to download, with in-app purchases available.
Is Sengata Dojo free?
Sengata Dojo is free to download, with in-app purchases available.
Do Red Sheet or Sengata Dojo have ads?
Red Sheet shows ads; Sengata Dojo does not.

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