Booktrail vs Knowing Body
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Booktrail
Organize your personal library by tracking books you're reading, want to read, or have finished. Add books by scanning barcodes or searching by title/author, and monitor your reading progress. Create custom collections for better organization and discover new titles with synopses and reviews.
- Track reading status (reading, want to read, finished)
- Add books via barcode scan or search
- Record reading progress and percentage
- Create custom book collections
- View book synopses and user reviews
- Private, no account required
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Scan a barcode. Build your shelves. Track your progress. Booktrail is a private book tracker and reading list that lives on your device. No account, no sign-up. SCAN OR SEARCH TO ADD BOOKS Scan the ISBN barcode on the back of a book, or search by title or author. SHELVES FOR EVERY STAGE Keep books you're reading, want to read, and have finished, all in one place. TRACK YOUR PROGRESS Update pages read or percentage complete, and see how far along you are. CUSTOM COLLECTIONS Group books into your own collections to organize your library your way. DISCOVER YOUR NEXT READ Browse synopses and reader reviews before you add a book. PRIVATE BY DESIGN No account is required. Your library is stored on your device.
Knowing Body
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Discover Your Body, Know Yourself. Knowing Body is an educational app that helps you explore the human body in a clear, engaging, and systematic way. Whether you're a student, a parent, or just someone curious about how the body works, Knowing Body brings anatomy and physiology to life with beautifully structured content and interactive features. Key Features: Human Body Overview: Learn about each body system, from the circulatory to the nervous, with clear explanations and diagrams. Daily Knowledge: Bite-sized facts about the body delivered every day to keep your curiosity alive. Body Dictionary: A bilingual (Chinese-English) dictionary of anatomical terms with easy-to-understand definitions. Knowledge Quiz: Test yourself with interactive quizzes to reinforce what you've learned. Featured Articles: Dive deeper with curated articles on health, anatomy, and body systems. Start your journey of knowing the amazing body you live in!
Screenshots
Verdict
The clearest difference is update cadence: Booktrail at every 9 days against Knowing Body's every 5 weeks. Knowing Body's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 17.0). On price, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Booktrail ships an update every 9 days, Knowing Body every 5 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.
| Parameter | Booktrail | Knowing Body |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 days — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 28 MB | 63 MB |
| Age rating | 4+ | 4+ |
| Developer | Defyner | ZHIWEN YOU |
In-app purchases
Booktrail
No in-app purchases
Knowing Body
No in-app purchases
Questions
Is Booktrail free?
Is Knowing Body free?
Do Booktrail or Knowing Body have ads?
Which is updated more often, Booktrail or Knowing Body?
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