Comparison

Cosy Case vs OnlyBooks

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

Head to head
About

Cosy Case

Create a visually appealing digital bookshelf to organize your reading. Earn rewards for reading milestones and customize your shelves with decorations. Track your progress, log reviews, and share your collection with friends.

Highlights
  • Build a digital bookshelf with real book spines
  • Import books by scanning spines or using AI
  • Earn badges and decorations for reading milestones
  • Log reads, reviews, and ratings
  • Set reading goals and track progress
  • Share your collection with friends
Features
Read full description

Cosy Case: Your Digital Book Case Welcome to Cosy Case — the book tracking app that's actually fun. Build a beautiful digital bookshelf, decorate it your way, and show off your reading life in style. • Real book spines, not just covers — Add the books you love and watch them appear as real spine images on your shelf. Snap a photo of one spine, scan your whole bookshelf to import books automatically, or create your own spines with AI. • Reading that feels like a game — Earn badges for reading milestones and collect cozy decorations: plants, candles, and bookends. Unlock new bookcase styles and make every shelf uniquely yours. • Track everything in one place — Log your reads, reviews, and ratings, set reading goals, and watch your collection grow on a shelf you can add right to your home screen. • Share your shelf — Show off your collection with friends and explore what they're reading, all from a digital bookshelf worth keeping. Rated 4.7 out of 5 by readers who love a shelf as much as the stories on it. Join 5000+ readers Download Cosy Case free today and start building your dream bookshelf. Buttons are an optional in-app currency used to unlock cosmetic items — new bookcase styles, backgrounds, and cozy decorations like plants, candles, and bookends. No purchase is required to track books or use core features. Cosy Case Pro (optional subscription): Upgrade for expanded monthly limits — 30 custom spine creations and 10 bookshelf scans per month. Cosy Case Pro is an auto-renewing subscription. Payment will be charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID account settings. By using this app, you agree to Apple's standard Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OnlyBooks

Features
Read full description

Your books deserve a better home than a spreadsheet. OnlyBooks turns your reading life into a beautiful virtual bookshelf — every book you own or have read, arranged as spines just like a real shelf. Add a book in seconds, watch your collection grow. A shelf that looks the part Books are rendered as spines with their real cover art and colours. Customise the wall, adjust shelf colours, and make it yours. Track what matters Log when you started and finished a book, or simply mark it as read if you can't remember the dates. Your stats page shows how many books you've read each month and how many pages you've powered through. Find any book instantly Search the Open Library catalogue of millions of titles to add books with cover art, author, year, and page count filled in automatically. Add several books at once with multi-select. Stay organised Tag books by genre, series, or anything else. Filter your shelf by tag, reading status, or month to find exactly what you're looking for. Your data, your device Everything is stored locally — no account, no cloud, no tracking. Export your entire library as a backup and import it on any device.

Screenshots

Cosy Case4 screens
OnlyBooks4 screens

Verdict

The call

The clearest difference is in-app purchases: OnlyBooks at none against Cosy Case's 8. Cosy Case's advantage is update cadence (every 6 days vs every 5 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. Cosy Case sells 8 in-app purchases, starting at $4.99 per month. OnlyBooks asks for nothing beyond the download.

UpkeepUpdate frequency

Cosy Case ships an update every 6 days, OnlyBooks every 5 months. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard2 real differences · 8 level
Cosy Case versus OnlyBooks: the parameters behind the verdict, then further details
ParameterCosy CaseOnlyBooks
PriceFreeFree
Rating4.6 (104 ratings) — better—
Positive reviews56.7% of reviews—
Number of ratings104 — better—
Update frequencyEvery 6 days — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.416.4
Further details — not scored
Size99 MB51 MB
Age rating4+4+
DeveloperGriffin CiluffoDevin Smith

In-app purchases

8 purchases

Cosy Case

Subscriptions4
  • Cosy Case Premium$4.991 Month
  • Monthly Premium$4.991 Month
  • Cosy Case Premium Yearly$19.991 Year
Show 1 more
  • yearly$49.991 Year
One-time4
  • 300 Buttons$2.99
  • 700 Buttons$5.99
  • 1300 Buttons$9.99
Show 1 more
  • Lifetime$29.99
None

OnlyBooks

No in-app purchases

Questions

Is Cosy Case free?
Cosy Case is free to download, with in-app purchases available.
Is OnlyBooks free?
OnlyBooks is free to download, with no in-app purchases.
Do Cosy Case or OnlyBooks have ads?
Neither Cosy Case nor OnlyBooks shows ads.
Which is updated more often, Cosy Case or OnlyBooks?
Cosy Case ships an update every 6 days, and OnlyBooks every 5 months. Most recently, Cosy Case was updated on November 8, 2026 and OnlyBooks on November 5, 2026.

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