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Report updated May 4, 2026
読書尚友 - 青空文庫ビューア
For japanese literature enthusiasts and users who require a versatile, vertical-text-capable document reader for local and cloud-based files.
Overview · Full Intel report in progress
読書尚友 - 青空文庫ビューア is an established book app that is completely free. With a 4.0/5 rating from 1 reviews, it shows polarized user reception.
What makes this app unique?
What Does It Look Like?
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What Are The Key Features?
Handles diverse file types including text, HTML, PDF, OOXML, ODT, ePub, htmlz, images, and ZIP archives.
Provides direct access to over 10,000 works with features for downloading, searching by author or category, and viewing access rankings.
Allows users to adjust font size, font type, background settings, and page orientation, including support for vertical and horizontal layouts.
Includes marker functionality, document-wide string search, and automatic table of contents generation based on Aozora Bunko annotations.
How much does it cost?
Who Built It?
hishida
Providing specialized tools for offline dictionary access and Japanese literature reading. Enabling power users to manage complex reference libraries.
Portfolio
5
Apps
What other apps does hishida make?
読書尚友 Lite (青空文庫ビューア)
読書尚友(青空文庫ビューア)
EBPocket Professional
EBPocket Lite
Explore the full hishida report
Portfolio breakdown, audience, momentum, and every app published by hishida.
Analysis in progress, available soon
What do users think recently?
Analysis in progress, available soon
View the full user-sentiment analysis
Mood gauge, ratings & review-volume history, every praise / complaint / request, and sentiment over time.
Analysis in progress, available soon
What is the competitive landscape for 読書尚友 - 青空文庫ビューア?
How's The Book Market?
How does it evolve in the Book market?
Rank progression
1 active ranking tracked — 30-day window
Strategic analysis coming soon
SWOT, key takeaways & outlook
The outtake for 読書尚友 - 青空文庫ビューア
Key Takeaways
This app serves as a highly functional, free reader that bridges the gap between Aozora Bunko's extensive library and local file management with robust vertical-text support.
Where Is It Heading?
Trend analysis
Available very soon