Comparison

Book Tracker vs RADIX

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

Head to head
About

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.

Highlights
  • Text recognition
  • Book collections
  • Tags and notes
  • Highlight export
  • Page number detection
  • Search functionality
  • Photo highlighting
Features
Read full description

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

About

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.

Highlights
  • 54 original artworks
  • 6 internal voices
  • Seasonal structure
  • Hidden systems
  • Contemplative practice
  • No notifications or streaks
Read full description

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

Book Tracker4 screens
RADIX4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard6 real differences · 4 level
Book Tracker versus RADIX: the parameters behind the verdict, then further details
ParameterBook TrackerRADIX
PriceFree — better$4.99
Rating4.9 (751 ratings)5.0 (6 ratings) — better
Positive reviews92.8% of reviews100.0% of reviews — better
Number of ratings751 — better6
Update frequencyEvery 5 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.415.1 — better
Further details — not scored
Size72 MB99 MB
Age rating4+4+
DeveloperDamir StuhecAlexander Perrin

Customer experience

Book Tracker

All ratings748 ratings
Positive96.7%
Neutral1.7%
Negative1.6%
Written reviews361 reviews
Positive92.8%
Neutral3.9%
Negative3.3%

RADIX

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

6 purchases

Book Tracker

Subscriptions3
  • Highlighted Club Monthly$2.991 Month
  • plus weekly$4.997 Days
  • plus yearly3 Days trial$44.991 Year
One-time3
  • Small tip$9.00
  • Medium tip$25.00
  • Large tip$49.00
None

RADIX

No in-app purchases

Questions

Is Book Tracker free?
Book Tracker is free to download, with in-app purchases available.
Is RADIX free?
RADIX costs $4.99, with no in-app purchases.
Which has better reviews, Book Tracker or RADIX?
RADIX is rated higher. Book Tracker averages 4.9 out of 5 from 751 ratings, while RADIX averages 5.0 from 6 ratings.
Do Book Tracker or RADIX have ads?
Neither Book Tracker nor RADIX shows ads.
Which is updated more often, Book Tracker or RADIX?
Book Tracker ships an update every 5 weeks, and RADIX every 3 days. Most recently, Book Tracker was updated on November 7, 2026 and RADIX on November 5, 2026.

Other comparisons