tsundoku reader vs ScrollWizard
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
tsundoku reader
This app offers a free, universal EPUB reader optimized for quick Japanese reading. It features an integrated, powerful Japanese dictionary and customizable reading settings for an enhanced on-the-go experience.
- Universal EPUB reader
- Integrated Japanese dictionary
- Paginated and continuous scroll modes
- Autosave and progress tracking
- Customizable font size and themes
- Toggleable furigana
- Vertical/horizontal text direction
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tsundoku reader is the first universal EPUB reader app designed with quick-and-easy Japanese reading at the forefront, for free. Gain access to a powerful Japanese dictionary in milliseconds with the tap of any word. tsundoku is designed to revolutionize on-the-go reading, making any book both quick and convenient. Stop scrolling and start reading today, for free, forever. ______________________ Custom EPUB Reader tsundoku uses a custom EPUB renderer optimized for iOS. Read on your phone similar to a book by using paginated mode, allowing you to swipe between pages as though you’re flipping through, or scroll smoothly through your book with continuous scrolling mode. Powerful Japanese Dictionary Other free reading apps don’t have an integrated dictionary. Specialized reading devices are slow, their dictionaries aren’t thorough, and you always have to carry it with you. With tsundoku, you gain access to JMDict, one of the most complete dictionaries around, in addition to Kanji data from the Kanjidic project, and pitch accents from Wadoku, all in your phone. With the tap of a word, you’ll learn everything there is to know about any word. Autosave and progress tracking tsundoku is designed to be on-the-go. That’s why we prioritize automatic progress saving on every book, always. tsundoku will always track your progress, and wait for you where you last left off. Customizable settings tsundoku is designed to be customizable, to suit your needs for any book in any language. Customize font size, line height, font, paginated and continuous scroll modes, and reader theme. With Japanese, gain access to toggleable furigana, and change between vertical and horizontal text direction. ______________________ Check out the official tsundoku webpage: https://www.evansyu.com/projects/tsundoku Changelog: https://www.evansyu.com/projects/tsundoku/changelog Privacy Policy: https://www.evansyu.com/projects/tsundoku/privacy
ScrollWizard
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Your books deserve a better home. ScrollWizard is a full EPUB and PDF reader for people who care how they read -- not just what. Tune the type to taste -- font, size, line height, spacing, reading width, margins, alignment, hyphenation -- and override any of it per book. Speed-read with a built-in focus engine. No subscription, ever. Pay once, own it forever. READING, YOUR WAY -- 12 fonts including OpenDyslexic, with size, line height, and letter and word spacing -- Text alignment, paragraph indent and spacing, hyphenation -- Reading Width control sets your line length and centres the column on wide screens, plus top and bottom margins -- 5 built-in themes (Light, Dark, Sepia, Solarized Dark, Nord) plus unlimited custom themes -- Page-turn animations: slide, fade, or none -- Per-book overrides -- some books just read better in a different font -- A Lock Screen Live Activity shows your reading progress at a glance FOCUS READING (RSVP SPEED READER) -- Words appear one at a time at the pace you set, from 100 to 1500 WPM -- A focus mode: fewer distractions, one word at a time, your pace -- Adjustable word highlighting and a tunable pause curve -- Sentence navigation: swipe back or forward with full context -- Eases back up to speed after a pause, so you never lose the thread SPLIT READER (iPad) -- Two books side by side with a draggable divider -- Paragraph-proportional sync keeps both sides aligned -- Reference pane: open footnotes or an appendix beside the text without losing your place VOCABULARY & ANNOTATIONS -- Select any word for an instant dictionary definition -- Save words with their sentence and book attached, then export them to a flashcard file (Anki, TSV, or JSON) -- Highlight in 5 colors, with optional notes -- Export every annotation to Markdown, Obsidian, Notion, Logseq, or JSON -- no caps, no publisher limits -- Full-text search within any book YOUR LIBRARY -- Smart collections that sort themselves by your rules -- Browse free books from Project Gutenberg, ManyBooks, and Feedbooks, plus Standard Ebooks for Patrons Circle members -- Connect your own Calibre server -- iCloud sync for books and reading position, in a folder you can actually see -- Cover grid with sorting, filtering, metadata editing, and batch actions READING STATISTICS -- Daily reading charts with 7- and 30-day views, goals, pages, and time -- See how far you have come -- not how far you have to go No ads. No analytics. No feed pulling you somewhere else. No account to make. Just you and the book. The base reader is completely free. Advanced Wizard Mode -- the RSVP Speed Reader, the iPad Split Reader, and custom font import -- is a one-time purchase. No subscription. No recurring charges. One wizard, one price, forever. Reflowable EPUB and PDF. App available in 12 languages.
Screenshots
Verdict
The clearest difference is in-app purchases: tsundoku reader at none against ScrollWizard's 1. ScrollWizard's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads, 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. ScrollWizard sells 1 one-off in-app purchase. tsundoku reader asks for nothing beyond the download.
tsundoku reader ships an update every 5 months, ScrollWizard every 2 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.
| Parameter | tsundoku reader | ScrollWizard |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 5 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 207 MB | 50 MB |
| Age rating | 4+ | 4+ |
| Developer | Evans Yu | Merijn Douwes |
In-app purchases
tsundoku reader
No in-app purchases
ScrollWizard
- Advanced Wizard Mode$4.99









