Comparison

Mobile Bookshelf vs Cocoas

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

Head to head
About

Mobile Bookshelf

Features
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The Ultimate App for Managing Your Books and Tracking Your Reading. With Mobile Bookshelf – Reading Log, your personal bookshelf is always at your fingertips! Easily keep track of your reading history, too. Manage your entire collection of books conveniently from your smartphone. You can also easily manage your reading progress – track which books you've read, when you read them, or if you're still reading. As an avid reader who often buys and records books, I developed this app based on what I personally wanted. I hope you enjoy using it. [FAQ] Q: Isn't adding books to the app a hassle? A: Not at all! You can easily retrieve book information by scanning barcodes – no manual input required. Q: Can I add eBooks too? A: Yes! You can manually add eBooks. And in the future, we plan to add a keyword search feature so you can easily fetch book details from search results, making eBook registration even easier. Q: I often forget what each book was about... A: No worries. With the tagging feature, you can link custom keywords to your books. You can quickly find what you're looking for by searching by tags in the book list. Since there's no fixed genre system, the tagging system offers high flexibility and ease of use. [Features Available by Plan] Free Plan – Add and Update book information (up to 100 books) – Retrieve book details by barcode scanning – Book Stats & Charts – Add and Update tags (unlimited) – Use tags for searching and organizing Standard Plan – All features from the Free Plan – Add and Update book information (up to 500 books) Advanced Plan – All features from the Standard Plan – Add and Update unlimited books Prices and features are subject to change. [Payment Information for Paid Plans] Payments will be charged to your App Store account and will automatically renew each month. [Details About Auto – Renewal] Unless canceled at least 24 hours before the end of the subscription period, your subscription will automatically renew each month. [Checking Subscription Status & Cancelation] You can check or cancel your subscription from the Settings app on your device. For details, visit Apple Support: https://support.apple.com/118428 [Terms of Service] https://www.houkagomotokiclub.com/activity/app/bookManager/agreement/ios [Privacy Policy] https://www.houkagomotokiclub.com/activity/app/bookManager/policy

About

Cocoas

Features
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Cocoasは、読書のひとときを邪魔せず、 心に残った気づきやセリフをそっとメモできる本管理アプリです。 落ち着いたデザインと手書き風の表現で、 まるでリングノートに書きとめるように自然に記録できます。 あとから見返したくなる、あなたらしい読書メモが残せます。 【Cocoasの3つの魅力】 1. 読書を妨げない、手書き風の気軽なメモ ・思いついた瞬間にすぐ書ける ・名言やセリフもさっと記録 ・ノートのような温かいデザインで、書くのが心地よい 2. AIがあとからやさしく整理 ・散らばったメモを自動でまとめて要約 ・ポイントを見逃さず、学びを深める ・読書の記録が一つのストーリーに 3. あなたの読書がつながる体験に ・本棚を「積読・読書中・読了・お気に入り」でわかりやすく整理 ・ナレッジグラフで、メモ同士のつながりを発見 ・表紙画像も自動取得。本探しもスムーズ 【こんな方におすすめ】 ・本を読みながら、気づきをメモしたい ・読書体験を、あとからじっくり振り返りたい ・静かに、でもしっかりと読書を楽しみたい ・自分だけの本棚を丁寧に育てたい Cocoasが届けたいのは、 「忙しい日常の中で、ほっと一息つける読書時間」。 あなたの読書のそばに、やさしく寄り添うアプリです。

Screenshots

Mobile Bookshelf4 screens
Cocoas4 screens

Verdict

The call

The clearest difference is in-app purchases: Cocoas at none against Mobile Bookshelf's 2. Cocoas also leads on update cadence (every 3 weeks vs every 2 months). On price, ads, 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. Mobile Bookshelf sells 2 in-app purchases, starting at $0.99 per month. Cocoas asks for nothing beyond the download.

UpkeepUpdate frequency

Mobile Bookshelf ships an update every 2 months, Cocoas every 3 weeks. The most recent releases landed on October 15, 2026 and October 3, 2026 respectively.

Scorecard2 real differences · 4 level
Mobile Bookshelf versus Cocoas: the parameters behind the verdict, then further details
ParameterMobile BookshelfCocoas
PriceFreeFree
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.515.1 — better
Further details — not scored
Size37 MB38 MB
Age rating4+4+
Developerkouten motokiKOJI ASAMIZU

In-app purchases

2 purchases

Mobile Bookshelf

Subscriptions2
  • Standard Plan$0.991 Month
  • Advance Plan$1.991 Month
None

Cocoas

No in-app purchases

Questions

Is Mobile Bookshelf free?
Mobile Bookshelf is free to download, with in-app purchases available.
Is Cocoas free?
Cocoas is free to download, with no in-app purchases.
Do Mobile Bookshelf or Cocoas have ads?
Neither Mobile Bookshelf nor Cocoas shows ads.
Which is updated more often, Mobile Bookshelf or Cocoas?
Mobile Bookshelf ships an update every 2 months, and Cocoas every 3 weeks. Most recently, Mobile Bookshelf was updated on October 15, 2026 and Cocoas on October 3, 2026.

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