資格タイマー vs DualTextScanner
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
資格タイマー
This app helps users focus on studying for certification exams by using a phone-flipping timer and personalized study schedules. It offers Pomodoro timers, ambient sounds, and detailed statistics to track progress. Users can also share their study reports on social media.
- Flip phone to start timer
- Exam-based study scheduling
- Pomodoro timer
- Ambient soundscapes
- Learning statistics
- Social media sharing
- Live Activities support
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「スマホが気になって勉強に集中できない」を解決する、資格試験特化の学習タイマーです。 ■ スマホを裏返すだけで集中開始 スマホを机に伏せるとタイマーが自動スタート。持ち上げるとカウントダウン警告が始まり、集中を維持する仕組みです。 ■ 試験日から逆算する学習スケジュール 資格を選ぶだけで目標学習時間とスケジュールが設定完了。プリセットから自分に合った週間パターンを選べます。「今日はあと何時間」が常に表示されるので、迷わず学習を始められます。 ■ ポモドーロ式タイマー 25分集中+5分休憩のブロック形式で、無理なく長時間学習をサポート。ブロック完了ごとに達成感を感じられます。 ■ 環境音BGM 雨音・焚き火・波の音・カフェ・鳥のさえずりの5種類から選べる環境音で、集中しやすい空間を演出。 ■ 学習統計で成長を実感 日別・週別の学習時間、連続学習日数、集中スコアをグラフで可視化。積み重ねた努力が数字で見えます。 ■ 勉強垢でシェア 学習レポートを美しいテンプレートで画像化。カレンダー、グラフ、カウントダウンなど9種類のデザインでSNSにシェアできます。 ■ ライブアクティビティ対応 ロック画面やDynamic Islandにタイマーを表示。アプリを開かなくても残り時間を確認できます。 ■ ウィジェット ホーム画面に試験日までのカウントダウンを表示。毎日の意識づけに。 ■ プレミアム機能 ・広告完全非表示 ・テーマカラー(7色) ・タイマーデザイン(5種:スタンダード/デジタル/クロック/ウォーター/キャンドル) ・ポモドーロ自由設定(集中5〜120分、休憩1〜30分) ・スマホ学習モード(裏返さずにスマホ教材で学習) ・複数目標の同時管理 ・シェアテンプレート全開放 ダークモード対応。ライト/ダークの手動切替にも対応しています。 対応資格の例: 簿記、FP、宅建、行政書士、社労士、中小企業診断士、TOEIC、基本情報技術者、応用情報技術者、公認会計士、司法書士、税理士、看護師、薬剤師、保育士 など 資格取得を目指すすべての方の学習をサポートします。 ■ 利用規約・プライバシーポリシー 利用規約(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ プライバシーポリシー: https://koachan-dev.github.io/shikaku-timer-legal/privacy.html
DualTextScanner
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DualText Scanner is a book scanner app for iPhone and iPad that lets you capture, enhance, read, search, and organize paper books and PDFs. Photograph book pages one by one and save them as easy-to-read digital data. Captured pages can be enhanced with distortion correction, shadow removal, whitening, contrast adjustment, and text enhancement. ■ Free Version and Pro Version This app is free to download. The free version lets you save up to two books and try scanning, image correction, OCR, and the built-in viewer. By upgrading to the Pro version through an in-app purchase, the book limit is removed. As long as your device has enough storage space, you can manage paper books and PDFs as your own searchable digital bookshelf. The Pro version is a one-time purchase upgrade, not a subscription. ■ Manage Scans by Book Scanned pages are managed by book. If you stop scanning partway through, you can check the next page number and resume later. You can gradually add pages and build your digital bookshelf over time. ■ Easy Capture and Page Correction When taking photos, the app displays a document detection overlay to help you check the page area. After capturing a page, you can manually adjust the four corners to correct open books or slightly curved pages. Perspective correction, shadow removal, whitening, and text enhancement help turn paper pages into clean, readable images. ■ Vertical and Horizontal OCR DualText Scanner supports OCR for both vertical and horizontal Japanese text. You can extract text from novels, practical books, reference materials, textbooks, and other book pages. You can also exclude top, bottom, left, and right areas from OCR. This helps avoid page numbers, chapter titles, margins, or repeated text, making it easier to focus on the main text. Extracted text can be edited while viewing the page image. On iPad or in landscape orientation, the image and text editor can be displayed side by side. ■ Export Searchable PDFs Captured pages can be exported as PDF files. By embedding OCR text into the PDF, you can create searchable PDFs for computers. ■ Export Text as CSV or Plain Text OCR text can be reviewed by book and exported as CSV or plain text. This is useful for study, research, note organization, checking text before quoting, and working with other apps. ■ E-Book Style Viewer Saved pages can be read in the built-in viewer. You can choose horizontal or vertical page turning, depending on the book and your preferred reading style. The viewer includes keyword search and search history, allowing you to quickly move to pages that contain the words you are looking for. ■ Clip Feature You can save favorite passages or sections as clips. Each clip can include the book title, author, page number, and text. Clips can be viewed across books and are useful for reading notes, study notes, and organizing references. Saved clips can also be copied or exported as CSV. ■ PDF Import You can import existing PDFs, convert each page into an image, and register them as book data. Imported PDFs can also be used with image correction, OCR, text editing, and viewer reading. ■ Backup and Restore You can back up book images, extracted text, clips, settings, and other data together. The backup destination can be selected by the user, such as iCloud Drive or the Files app. By restoring a backup file on another device, you can recreate the same book environment. ■ Privacy DualText Scanner does not send book images or extracted text to our company servers. Main processing such as image correction and OCR is performed on the device. When sharing PDFs, CSV files, extracted text, or other data with external apps or cloud services, please check the terms and privacy policy of the destination service and manage the data at your own discretion. DualText Scanner helps you create book data that you can read, search, and use later. Organize your important books as your own searchable digital bookshelf.
Screenshots
Verdict
The clearest difference is ads: DualTextScanner at none against 資格タイマー's shown. DualTextScanner also leads on iOS requirement (16.0 vs 18.0). 資格タイマー's advantage is update cadence (every 2 weeks vs every 2 months). On price, 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. 資格タイマー sells 3 in-app purchases, starting at $0.99 per month and DualTextScanner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
資格タイマー ships an update every 2 weeks, DualTextScanner every 2 months. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.
| Parameter | 資格タイマー | DualTextScanner |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.0 | 16.0 — better |
| Further details — not scored | ||
| Size | 19 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | YOSHIKI KOAKUTSU | AIビジョンテクノロジー株式会社 |
In-app purchases
資格タイマー
- プレミアムプラン(月額)$0.991 Month
- プレミアムプラン(年額)7 Days trial$6.991 Year
- プレミアム買い切り$9.99
DualTextScanner
- DualText Scanner Pro$2.99









