Book Tracker・Reading Log vs Stellary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Book Tracker・Reading Log
Easily build and manage your personal library by adding books via search, ISBN scan, or manual entry. Track reading progress, set goals, and record notes. Enjoy a private reading experience with data stored locally.
- Build personal library
- Add books by title, author, ISBN, or manual entry
- Track reading status (Want to Read, Reading, Read, Did Not Finish)
- Record ratings and notes
- Set yearly reading goals
- Built-in reading timer
- Private, local data storage
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Your private reading companion Build Your Library • Search by title or author and add a book in one tap. • Or scan its ISBN barcode, or type the details in yourself. • Want to Read · Reading · Read · Did Not Finish • Rating · Notes · Total pages Reach Your Goals • Set yearly targets and watch your progress grow. • Track reading sessions with a built-in timer. Private by Design • Your library, notes, and progress stay on your device. • No accounts required • Book search and ISBN lookup connect to Open Library. ISBN scanning, the reading timer, saved quotes, detailed charts and full backup require a subscription. Terms of Use: https://zeroplay.io/docs/legal/terms-of-service Privacy Policy: https://zeroplay.io/docs/legal/privacy-policy
Stellary
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Stellary turns your reading life into something you can actually look at: a private night sky. Every book you finish becomes a star. Your favorite genres form glowing constellations. Keep reading, and you'll watch your own universe grow brighter, year after year. EFFORTLESS TRACKING • Start the reading timer, or log a session in seconds • Scan a barcode and any book is in your library before you've put it down • Bring your entire Goodreads history with you in one import • Build a streak day by day, and set a yearly goal that keeps pace with you A SKY THAT'S YOURS ALONE • The Atlas: a living star field made of every book you've finished • Each genre gets its own color and its own constellation • Earn zodiac constellations month by month • Discover your reader identity, an archetype that shifts as your taste does BETTER WITH FRIENDS • A calm, quiet feed of what your friends are reading. No likes to chase, no algorithm. • Share reviews with friends • Read together and discuss what you are reading with book clubs • See when a friend is reading right now GO INFINITE (optional subscription) • An unlimited library • Advanced statistics: your trends, records, and patterns • Custom shelves, organized your way • Streak protection that forgives a missed day • Ambient soundscapes to read to • Beautiful share cards for all your reading statistics • Recommendations from readers whose shelves look like yours Core reading tracking is free. Forever. Stellary works offline, syncs privately, and your library is never public. Stellary Infinite is an auto-renewing subscription (monthly, 6-month, or annual) with a 7-day free trial. Payment is charged to your Apple Account 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 Account settings. Terms of Use: https://stellary.cloud/terms Privacy Policy: https://stellary.cloud/privacy
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Verdict
The clearest difference is ads: Stellary at none against Book Tracker・Reading Log's shown. Stellary also leads on update cadence (every 6 weeks vs every 4 months). Book Tracker・Reading Log's advantage is device support (3 vs 1). On price, in-app purchases 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
Both are free to download. Book Tracker・Reading Log sells 2 in-app purchases, starting at $4.99 per 7 days and Stellary sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
Book Tracker・Reading Log ships an update every 4 months, Stellary every 6 weeks. The most recent releases landed on October 8, 2026 and October 7, 2026 respectively.
| Parameter | Book Tracker・Reading Log | Stellary |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| Update frequency | Every 4 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 106 MB | 101 MB |
| Age rating | 4+ | 4+ |
| Developer | ZeroPlay Ltd. | HAKAN MATTIAS BJORN OLANDERSSON |
In-app purchases
Book Tracker・Reading Log
- Weekly Pro3 Days trial$4.997 Days
- Monthly Pro3 Days trial$14.991 Month
Stellary
- Stellary Infinite7 Days trial$3.991 Month
- Stellary Infinite7 Days trial$19.996 Months
- Stellary Infinite7 Days trial$29.991 Year
Questions
Is Book Tracker・Reading Log free?
Is Stellary free?
Do Book Tracker・Reading Log or Stellary have ads?
Which is updated more often, Book Tracker・Reading Log or Stellary?
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