Comparison

UD Browser vs 漢字脳トレ

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

Head to head
About

UD Browser

This app enhances reading accessibility with universal design principles. It supports various e-book formats, offers OCR for document digitization, and includes text-to-speech and zoom features for comfortable reading by anyone.

Highlights
  • Universal design for accessibility
  • Supports EPUB, DAISY, PDF, HTML formats
  • OCR for digitizing paper documents
  • Text-to-speech functionality
  • Keyboard navigation and zoom display
  • Reflowable and fixed layouts
Read full description

UD Browser is an e-book reading application developed based on universal design principles, with a strong focus on enhancing reading accessibility. This application allows users to switch between fixed layouts (PDF) and reflow layouts (HTML), while supporting a wide range of e-book formats, including EPUB and DAISY. Designed for comfortable use by anyone, it features an OCR function, zoom display, keyboard navigation, dictionary search, and text-to-speech capabilities. The intuitive, easy-to-navigate menus and text selection functions ensure that individuals with low vision can confidently use the app. Additionally, the OCR and file conversion functions enable quick digitization of paper documents. Ideal for use in educational settings, workplaces, and at home, this app is a powerful tool for supporting learning and information sharing. This application was developed under contract with the Yasushi Nakano Laboratory at Keio University and was completed with research funding from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Japan Society for the Promotion of Science (JSPS) (Grant Numbers: 16H02072, 19H00623, 22H00081). Application Features - Easy-to-use interface with large, readable menus - Dictionary search and text-to-speech functionality - Page jump feature for quick navigation - Support for keyboard operations - Reflow display that maintains readability when text is enlarged - Conversion functionality for text files, Word files, and PDF files - OCR functionality for digitizing paper documents - Compatibility with EPUB and DAISY file formats

About

漢字脳トレ

Features
Read full description

住宅街で犬の散歩をしていると各ご家庭の表札が目に入ってきます。 上村さん、中村さん、下村さん、ん?「上中下」それぞれに「村」。 大村さん、中村さん、小村さん、「大中小」もあるね。 北村さん、西村さん、ん?もしかして、「東村」さんや「南村」さんもある? 前後左右や春夏秋冬もあるのかなぁ? などなど、頭の中でぐるぐる〜っと。 どんな名前があって、どんな前がないのか、ちょー知りたくなりました。 で、このアプリ作りました。(笑) 「漢字脳トレ」という形のアプリにしました。 ゲームっぽくするとみんなで興味を持ってもらえるかと思って。 そんなに難しい脳トレではないので、小さいお子さんからご高齢の方まで楽しんでいただければと思いま〜す。 ポイントをゲットすると何かご褒美がもらえないとちょっとつまらないかなぁ〜と思いまして、そのようにしました。 簡単なものは正解で2pt、ちょっと難しそうなものは5pt、難しいものは10ptとして、100pt達成でご褒美がもらえます。 ご褒美は、さらに難しい脳トレを3つほど。 お友達同士で競い合っていただいても良いし、電車で暇な時にちょっと脳トレしていただいても良いです。 無料でアプリはご利用できますので、お仲間やお友達とも一緒に楽しんでいただければ嬉しいです。

Screenshots

UD Browser4 screens
漢字脳トレ4 screens

Verdict

The call

The clearest difference is in-app purchases: UD Browser at none against 漢字脳トレ's 1. UD Browser also leads on device support (4 vs 1) and iOS requirement (15.0 vs 18.6). On price, update cadence and ads 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. 漢字脳トレ sells 1 one-off in-app purchase. UD Browser asks for nothing beyond the download.

UpkeepUpdate frequency

UD Browser ships an update every 6 days, 漢字脳トレ every 11 days. The most recent releases landed on October 20, 2026 and October 5, 2026 respectively.

Scorecard3 real differences · 7 level
UD Browser versus 漢字脳トレ: the parameters behind the verdict, then further details
ParameterUD Browser漢字脳トレ
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 6 days — betterEvery 11 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.0 — better18.6
Further details — not scored
Size156 MB4 MB
Age rating4+4+
DeveloperClimb AppImport EV

In-app purchases

None

UD Browser

No in-app purchases

1 purchases

漢字脳トレ

One-time1
  • 広告を非表示$1.99

Questions

Is UD Browser free?
UD Browser is free to download, with no in-app purchases.
Is 漢字脳トレ free?
漢字脳トレ is free to download, with in-app purchases available.
Do UD Browser or 漢字脳トレ have ads?
Neither UD Browser nor 漢字脳トレ shows ads.
Which is updated more often, UD Browser or 漢字脳トレ?
UD Browser ships an update every 6 days, and 漢字脳トレ every 11 days. Most recently, UD Browser was updated on October 20, 2026 and 漢字脳トレ on October 5, 2026.

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