UD Browser vs JOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
JOS
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JOS app allows you to overview the congress program and create your own personal itinerary. Download the mobile app in order to: + View the detailed congress program, complete with session descriptions and schedules. + Browse or search the full schedule of programs by day, type or title. + See the list of speakers and find the sessions they will present. + Plan your own personal program and organize your schedule during congress. + Receive the very latest congress updates.
Screenshots
Verdict
The clearest difference is update cadence: UD Browser at every 6 days against JOS's every 7 months. UD Browser also leads on device support (4 vs 2). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
UD Browser ships an update every 6 days, JOS every 7 months. The most recent releases landed on October 24, 2026 and October 27, 2026 respectively.
| Parameter | UD Browser | JOS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 days — better | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 157 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Climb App | Japanese Ophthalmological Society |
In-app purchases
UD Browser
No in-app purchases
JOS
No in-app purchases
Questions
Is UD Browser free?
Is JOS free?
Do UD Browser or JOS have ads?
Which is updated more often, UD Browser or JOS?
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