The Shelf vs Lumi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Shelf
Organize your entire book collection, track reading progress, and capture notes and quotes. This app offers a private, customizable space to manage your reading life, from adding new books to reviewing past sessions.
- Build and organize your book library
- Track reading progress and focus sessions
- Save notes, quotes, and journal entries
- View detailed reading statistics
- Customize app appearance
- Sync and export library data
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The Shelf is a private reading tracker for books you study, stories you love, and everything in between. Build a library that feels like yours, then track only what feels useful. BUILD YOUR LIBRARY • Search by title, author, or ISBN and choose the edition that matches yours. • Scan book barcodes on supported iPhone and iPad devices, or add books manually on iPhone, iPad, and Mac. • Keep each edition or physical copy separate, with its own progress, sessions, and reading history. • Save books as Owned, Wishlist, or Track. Organize them with your own Lists, Subjects, and shelf locations. • Keep track of borrowing and lending without changing your reading history. • Import Goodreads or StoryGraph CSV files, or import and export a complete JSON backup. MAKE TIME FOR READING • Start a Reading, Listening, or Studying Focus session with no time limit or a planned duration. • Browse your covers, choose a book, and settle into a book-centered Focus view. • Pause and resume the count-in or the session itself. Keep notes without ending your session. • Update pages, percentage, audiobook position, chapters, or study problems. • Record starting and ending pages, revisit past sessions, and keep rereads separate. • Follow an active session through Live Activities on supported iPhone and iPad devices. Choose a System or Clear Lock Screen background. REMEMBER WHAT YOU READ • Keep a book note, dated notes, quotes, page references, and photographs together in Notebook. • Capture text with the camera on supported iPhone and iPad devices, or add writing and images yourself. • Search your library and return to the books and annotations that matter. SEE YOUR READING LIFE • Explore activity, finished books, session totals, streaks, and reading history. • Set optional yearly goals without turning reading into a deadline. • Revisit your reading calendar and compare progress across Subjects. AT HOME ON YOUR APPLE DEVICES • Browse, edit, annotate, review your Dashboard, and use Focus on iPhone, iPad, and Mac. • Enjoy Mac menus, keyboard commands, pointer support, and file import and export. • On a paired Apple Watch, see current and recent books and progress, start and control Focus, or log a short past session. The companion works with your iPhone app. • On iPhone Duo, keep your place as you open, close, rotate, or partially fold the display. The closed outer display stays in portrait; the open inner display supports landscape. • Turn on optional private iCloud sync to keep your library across your iPhone, iPad, and Mac. MAKE IT FEEL LIKE YOURS • Choose an included Look or your own background and two accent colors. • Customize the app's cards and appearance, including the new Deep Sea & Gold Look. • Invite Dewey into supported book and Focus views, with your choice of outfit and colors. PRIVATE BY DESIGN No accounts, ads, tracking, analytics, subscriptions, or third-party SDKs. Optional book lookup sends a title, author, or ISBN only when you ask the app to search or fetch. Camera images, notes, and reading history stay on your device or in your own optional private iCloud library. Turn Online Lookup off for a fully offline library. Pay once, own it forever.
Lumi
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Meet Lumi, a calm and private home for your reading life. Keep track of the books you want to read, follow your current progress, record focused reading sessions, save meaningful quotes, and see how your reading develops over time. No social feed. No public profile. No pressure. Just you, your books, and Lumi—the friendly reading ghost keeping your place. KEEP YOUR LIBRARY ORGANIZED Add books by searching online, scanning their barcode, or entering them manually. Organize books as: • To Read • Reading • Finished • Did Not Finish Track physical books, ebooks, and audiobooks in one personal library. TRACK EVERY READING SESSION Start a reading timer whenever you pick up a book. Lumi records how long you read and lets you update your pages, percentage, or audiobook position when you finish. Pause, resume, or end your session directly from your Lock Screen with Live Activities. YOUR CURRENT BOOK, ALWAYS CLOSE Keep your current read visible with beautiful Home Screen and Lock Screen widgets. Depending on your widget, you can: • See your current book and progress • Start a reading session • Log pages quickly • Follow your daily reading goal • Display a favorite quote SAVE QUOTES WORTH REMEMBERING Collect quotes and highlights from every book you read. Add the page, chapter, or audiobook timestamp, mark favorites, and revisit them whenever you need a little inspiration. UNDERSTAND YOUR READING See useful insights without turning reading into a competition. Explore: • Books finished • Pages and minutes read • Current and longest streaks • Monthly reading activity • Favorite genres • Reading formats • Yearly goal progress FIND YOUR NEXT BOOK Lumi creates simple, explainable recommendations based on the authors and genres you already enjoy. Discover: • More from authors you love • Books related to your favorite genres • Suggestions from your own To Read list • Trending books and new releases TRACK REREADS PROPERLY Reading a favorite again? Start a new reading attempt while preserving your original dates, sessions, and statistics. Every read gets its own history. IMPORT YOUR EXISTING LIBRARY Bring your books with you by importing a Goodreads or StoryGraph CSV file. You can also export your entire Lumi library, reading history, and quotes whenever you choose. PRIVATE BY DEFAULT Lumi requires no account. Your library is stored locally on your device. Lumi Pro users can optionally keep their data synchronized privately through iCloud. Your reading activity is never public. START FOR FREE Use Lumi free with up to 10 books, reading sessions, progress tracking, online search, barcode scanning, basic widgets, quotes, recommendations, and reading insights. Lumi Pro unlocks: • Unlimited books, quotes, and tags • All Home Screen and Lock Screen widgets • Interactive progress widgets • Live Activities • Private iCloud synchronization • Full reading insights • Complete personalized recommendations • Goodreads and StoryGraph imports • Additional themes and customization Your books deserve a quiet place of their own. Welcome to Lumi. --- Privacy Policy: https://www.ivantrj.com/app-privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Lumi at Free against The Shelf's $4.99. Lumi also leads on update cadence (daily vs every 3 days). The Shelf's advantage is in-app purchases (none vs 2) and device support (3 vs 1). On ads 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
Lumi is free to download; The Shelf costs $4.99 up front. Lumi sells 2 in-app purchases, starting at $5.99 per month. The Shelf asks for nothing beyond the download.
The Shelf ships an update every 3 days, Lumi daily. Both last shipped on October 31, 2026.
| Parameter | The Shelf | Lumi |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 3 days | Daily — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 59 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | Antonio Gordillo Toledo | Ivan Trajanovski |
In-app purchases
The Shelf
No in-app purchases
Lumi
- Lumi Pro Monthly$5.991 Month
- Lumi Pro Yearly$29.991 Year









