Comparison

DualText Reader vs tsundoku reader

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

Head to head
About

DualText Reader

Features
Read full description

DualText Reader is an app that lets you enjoy classic novels and literary works by reading the original text side-by-side with its translation. You can bookmark passages that catch your attention, and highlight memorable lines to save them like a scrapbook or vocabulary list. Experience a new way of reading that brings together the depth of the original text and the clarity of the translation. Enjoy your dual-language reading journey.

About

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.

Highlights
  • 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
Features
Read full description

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

Screenshots

DualText Reader3 screens
tsundoku reader4 screens

Verdict

The call

The clearest difference is ads: tsundoku reader at none against DualText Reader's shown. DualText Reader's advantage is update cadence (every 2 weeks vs every 5 months). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

DualText Reader ships an update every 2 weeks, tsundoku reader every 5 months. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard2 real differences · 8 level
DualText Reader versus tsundoku reader: the parameters behind the verdict, then further details
ParameterDualText Readertsundoku reader
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeks — betterEvery 5 months
AdsYesNo — better
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.616.0 — better
Further details — not scored
Size9 MB207 MB
Age rating12+4+
DeveloperMasatomo FukudaEvans Yu

In-app purchases

None

DualText Reader

No in-app purchases

None

tsundoku reader

No in-app purchases

Questions

Is DualText Reader free?
DualText Reader is free to download, with no in-app purchases.
Is tsundoku reader free?
tsundoku reader is free to download, with no in-app purchases.
Do DualText Reader or tsundoku reader have ads?
DualText Reader shows ads; tsundoku reader does not.
Which is updated more often, DualText Reader or tsundoku reader?
DualText Reader ships an update every 2 weeks, and tsundoku reader every 5 months. Most recently, DualText Reader was updated on October 7, 2026 and tsundoku reader on October 9, 2026.

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