Book Tracker vs RADIX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Book Tracker
Capture, organize, and revisit key passages from your books with advanced text recognition. Create collections, add tags and notes, and easily export your highlights. Stop forgetting what you read and make your reading more impactful.
- Text recognition
- Book collections
- Tags and notes
- Highlight export
- Page number detection
- Search functionality
- Photo highlighting
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Remember more of what you read. Turn the passages that matter into a personal library you can search, revisit, and share. Point your camera at a book page, select the text, and save it with your notes, tags, and page number. Keep your books organized, return to favorite ideas with reminders and widgets, and recap a book’s core ideas from your own highlights with Apple Intelligence. CAPTURE • Capture text with your camera or from photos in your library • Select sentences and paragraphs with smart text recognition • Automatically select text you’ve highlighted or underlined in a book • Save multiple highlights from a page at once • Detect page numbers and scan ISBN barcodes to add books • Import highlights from Kindle or CSV files • Import your book library from Goodreads or other CSV files • Drag and drop images to capture highlights on iPad ORGANIZE • Build your personal bookshelf with collections and reading status • Group highlights into chapters and browse them in reading order • Add notes, tags, page numbers, and favorites • Add emphasis with bold, italics, underline, and strikethrough • Find relevant tags faster with smart suggestions • Search your highlights and filter by book, collection, or tag REVISIT • Recap a book’s core ideas from your highlights with Apple Intelligence • Rediscover saved passages with recurring highlight reminders • Keep highlights on your Home Screen with widgets • Start highlighting with Siri Shortcuts • Capture and browse your highlights offline SHARE & EXPORT • Share highlights as beautiful quote cards • Publish a book’s highlights as a web page anyone can read • Export one book or your whole library • Choose PDF, Markdown, CSV, RTF, or plain text • Include notes, tags, and page numbers in your exports FREE TO START Capture and organize unlimited books and highlights for free. Highlighted+ adds automatic selection of marked text, Apple Intelligence recaps, Kindle and CSV highlight import, whole-library export, custom reminders, and more. Apple Intelligence features depend on device, language, and system availability. Selected as Apple’s App of the Day 6 times. Trusted by 160,000+ readers. ABOUT ME I'm Damir, an independent creator from Europe who loves to read. Say hello at damir.stuhec@gmail.com Privacy Policy: https://highlighted-app.webflow.io/terms-and-policies#privacy-policy-heading Terms: https://highlighted-app.webflow.io/terms-and-policies#terms-of-service-heading
RADIX
This app offers a contemplative system based on philosophical concepts, featuring original artworks and internal voices. It encourages users to observe their reactions and discover hidden elements over time, with a focus on slow unfolding rather than quick consumption.
- 54 original artworks
- 6 internal voices
- Seasonal structure
- Hidden systems
- Contemplative practice
- No notifications or streaks
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RADIX: The Practice is the official companion to the book RADIX: The Law of Redirected Motivation—a philosophical framework that examines why optimization fails, how attention degrades under pressure, and what it means to rebuild from depth rather than speed. RADIX: The Practice is a contemplative system built from 54 original works of art, designed to be encountered over time. The experience moves with the seasons. Some reflections return familiar ground. Others introduce entirely new forms—novel encounters that behave differently, surface unexpected perspectives, or quietly alter how the system responds. You draw reflections when something tightens. Or loosens. Up to three times per day. Then the experiences rests. No notifications. No streaks. No habit loops. No algorithm learning you. Every reflection is a commissioned artwork—composed, rendered, and integrated as a structural element of the practice. These are not prompts or affirmations. You are not asked to interpret, explain, or improve anything. Notice what reacts. That’s enough. Beneath the visible layer are hidden architectures. Five internal voices emerge gradually—not through achievement or completion, but through continued presence. Each carries a distinct way of seeing. A sixth—The Mirror—remains concealed longer and reflects what the others cannot. There are secrets embedded throughout the system. Some reveal themselves once and never return. Others remain dormant for months. Nothing announces itself. Discovery happens quietly, on its own terms. Everything you encounter carries weight. Reflections drawn. Voices met. Covenants held. The system remembers without narrating. Hold too much for too long and the practice shifts. Composting is how you release—returning what is complete back into the soil. From what you let go, a Garden grows. Clear enough space, and emergence becomes possible. Time is part of the design. Some mechanics surface only after seasons have passed. RADIX is not meant to be consumed quickly or finished. It unfolds slowly—just as you do. Fifty-four original artworks. Six internal voices. Seasonal structure. Hidden systems. No subscriptions. No ads. No data extraction. Nothing sold but the practice itself.
Screenshots
Verdict
The clearest difference is price: Book Tracker at Free against RADIX's $4.99. Book Tracker also leads on ratings volume (751 vs 6). RADIX's advantage is in-app purchases (none vs 6) and update cadence (every 3 days vs every 5 weeks). On rating, review sentiment, ads 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
Book Tracker is free to download; RADIX costs $4.99 up front. Book Tracker sells 6 in-app purchases, starting at $2.99 per month. RADIX asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Book Tracker against 5.0 for RADIX. That said, the two scores are not equally well evidenced: Book Tracker has 751 ratings behind it against 6, so its average is the more settled of the two. Written reviews are what separate them: 93% of Book Tracker's written reviews are positive against 100% of RADIX's.
Book Tracker ships an update every 5 weeks, RADIX every 3 days. The most recent releases landed on November 7, 2026 and November 5, 2026 respectively.
| Parameter | Book Tracker | RADIX |
|---|---|---|
| Price | Free — better | $4.99 |
| Rating | 4.9 (751 ratings) | 5.0 (6 ratings) — better |
| Positive reviews | 92.8% of reviews | 100.0% of reviews — better |
| Number of ratings | 751 — better | 6 |
| Update frequency | Every 5 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 72 MB | 99 MB |
| Age rating | 4+ | 4+ |
| Developer | Damir Stuhec | Alexander Perrin |
Customer experience
Book Tracker
RADIX
Bugs and requests
Book Tracker
Reported bugs
3 issues- Occasional crashes or freezes
- Issues with recognizing text from curved pages
- Problems with losing previously saved highlights
Requested features
5 requests- Add ability to highlight and annotate PDFs
- Integrate with ebook readers like Kindle
- Implement cloud sync and backup
- Add more customization options for highlights
- Improve search and filtering functionality
RADIX
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Book Tracker
- Highlighted Club Monthly$2.991 Month
- plus weekly$4.997 Days
- plus yearly3 Days trial$44.991 Year
- Small tip$9.00
- Medium tip$25.00
- Large tip$49.00
RADIX
No in-app purchases









