Book Tracker vs Bookspine
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Book Tracker
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Mighty Bookshelf is the book tracker for people who collect series. Ever stood in a bookstore wondering which volume you own? Mighty Bookshelf keeps your whole collection of books, comics, manga and graphic novels in one place, so you never buy the same volume twice. SCAN AND ADD Scan a barcode to add a book in seconds, or search by title. Pick a better cover if the default is low resolution. SERIES, VOLUME BY VOLUME Keep every volume together and see which ones you own, which you've read and which are next. Mark books as owned, wishlisted or favorite, and as not read, reading or finished. FIND ANYTHING Filter by author, artist, genre, publisher and more. BRING YOUR LIBRARY Import from Goodreads, StoryGraph or a Mighty Bookshelf backup (CSV), and export a backup any time. YOURS ALONE No account needed. Your library lives on your device. Available in 17 languages on iPhone and iPad. Start with up to 50 books for free. A one-time purchase unlocks unlimited books.
Bookspine
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The book you're reading, on your Home Screen. Bookspine is a reading widget with no subscription and no ads: add a book, and your current read — with a progress ring — sits on the Home Screen. Tap the widget to add pages without opening the app. Most reading apps keep the widget behind a subscription. Here the widget is the point, so the Small one is free, and the number of books is never limited. ■ Free ・Small widget: the book you're reading, its cover or spine, and how far you are ・Add pages right on the widget (iOS 17 interactive widgets) ・Unlimited books — no five-book cap ・Finished books stay on your shelf, free, forever ・Search by title or author, or scan the ISBN barcode ・Works without a connection: you can always add a book by hand ・Set a reading goal for this year and see how close you are ■ Bookspine Pro (one-time purchase, not a subscription) ・Medium widget: cover, progress bar, pages left, books this year ・Large widget: this year's shelf — every book you've finished, lined up ・Lock Screen widgets: your progress without unlocking ・See your shelf by spines or by covers ・Reading goal widget: how far to this year's goal, on the Home and Lock Screens ・Year in review: books per month, pages read, your thickest book and the year's shelf — past years too ・iCloud sync: books, progress and your goal, the same on all your devices — even after a new iPhone ・To-read shelf widget: your to-read pile as spines, in Medium and Large ・Import from Goodreads: bring in what you've read, are reading and want to read from your export file, in one go ・Spine colors: pick the color of any book's spine ■ The shelf Books you finish line up on a shelf, oldest to newest. Books without a cover are drawn as a spine — a colour and the title — so the shelf never has grey holes in it. ■ Privacy Your books stay on your device. Only if you turn on iCloud sync (Pro), they sync through your own iCloud between devices signed in to your Apple Account — the developer never sees them. No account, no ads, no tracking. Only anonymous usage (which screens and widget sizes are used, whether Pro was purchased) is sent to improve the app — never your books, names or any Apple identifier. You can turn it off in Settings. Turn on “Also find covers on Apple Books” in Settings to fill in covers Open Library doesn't have (off by default). Book data comes from Open Library.
Screenshots
Verdict
The clearest difference is update cadence: Bookspine at every 3 days against Book Tracker's every 3 months. On price, ads, in-app purchases and device support 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. Book Tracker sells 1 one-off in-app purchase and Bookspine sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Book Tracker ships an update every 3 months, Bookspine every 3 days. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.
| Parameter | Book Tracker | Bookspine |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 18.2 | 17.0 — better |
| Further details — not scored | ||
| Size | 58 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Jean Tuffier | Minari Taniguchi |
In-app purchases
Book Tracker
- Unlimited$4.99
Bookspine
- Bookspine Pro$7.99







