SORARI vs 読書尚友
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SORARI
Access and read Japanese literature from Aozora Bunko. Customize font size, color, and layout for a comfortable reading experience. Discover new and popular books with daily updates and monthly rankings.
- Access Aozora Bunko library
- Customizable font size and color
- Adjustable margins and line spacing
- Beautiful ruby and wordwrap layout
- Daily book additions
- Monthly popular book rankings
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◆Let me present to you SORARI "SORARI" is an application that you can read books published in Aozora Bunko. It corresponds to the latest iPhone · iPad, and layouts ruby and wordwrap beautifully. You can also set font size, color, margin and line spacing. ◆Let's search for your favorite books In Aozora Bunko, new books are added every day. Also, books that were popular every month are ranked. If you use "SORARI", you will surely find a book of your choice. ◆About advertisement We will display advertisements in each part of the application. Please understand that development and administration are covered by advertisement revenue. In addition, it is also possible to delete advertisements in in-app billing. 【Latest information】 We inform you of the latest information at this URL. You can also inquire about points and bug information you care about here. Please do not hesitate to contact us. https://sorariblog.wordpress.com/
読書尚友
This app is a Japanese vertical text viewer for iOS, offering access to over 10,000 works from Aozora Bunko and supporting local files. It handles various formats and provides customization options for a comfortable reading experience.
- Supports various file formats (text, HTML, PDF, ePub, images, etc.)
- Automatic character code detection
- Browse Aozora Bunko by author, title, genre, and ranking
- Download books directly from Aozora Bunko
- Customizable font, size, background, and page direction
- In-app search and bookmarking
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読書尚友」はiOS 用の日本語縦書きファイルビューアです。青空文庫で公開されている一万冊以上の作品を快適に読書できます。ローカルファイルのビューアとしても利用できます。 ・テキスト、html、PDF、OOXML(.docx)、ODF(.odt)、ePub、htmlz、画像(jpeg, png,bmp)、zip(書庫内のテキストファイルを表示)に対応 ・文字コード自動判定(Shift_JIS,UTF-8,UTF-16) ・作家別・作品別・分野別(NDC)、公開年別の作品リスト、新規公開作品、アクセスランキング ・書き出しの表示 ・青空文庫からのダウンロード ・本棚 ・マーカー ・ローカルファイルの表示 ・作品名の検索 ・青空文庫の主要な注記に対応 ・目次（青空文庫の見出し注記から作成） ・文書内の文字列検索 ・フォントサイズ、フォントの変更 ・背景色・背景画像 ・ページ方向（縦書き・横書き） ・行頭・行末禁則、自動縦中横
Screenshots
Verdict
The clearest difference is rating: SORARI at 4.8 against 読書尚友's 4.0. SORARI also leads on review sentiment (71% vs 50%) and ratings volume (39 vs 1). 読書尚友's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads, in-app purchases and monetization model 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. SORARI sells 2 one-off in-app purchases and 読書尚友 sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
SORARI holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: SORARI has 39 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 71% of SORARI's written reviews are positive against 50% of 読書尚友's.
SORARI ships an update every 2 months, 読書尚友 every 2 weeks. Both last shipped on November 11, 2026.
| Parameter | SORARI | 読書尚友 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (39 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 71.4% of reviews — better | 50.0% of reviews |
| Number of ratings | 39 — better | 1 |
| Update frequency | Every 2 months | Every 2 weeks — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 30 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | satoshi kumagai | hishida |
Customer experience
SORARI
読書尚友
In-app purchases
SORARI
- Front cover$0.99
- DeleteAds$1.99
読書尚友
- 広告削除$1.99
