Ghostreader AI vs Lumi
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ghostreader AI
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Ghostreader is the e-reader that reads with you. Bring books, papers, and articles into one private reading workspace, then ask questions, follow ideas, and return every answer to its source. READ WITH GHOST • Ask questions grounded in the text in front of you • Highlight a passage to explain it, define it, or ask a follow-up • Chat with one book, a selected set, or your whole library • Check cited source passages instead of taking an answer on faith • Listen with natural read-aloud while the page stays visible KEEP A PRIVATE READING MEMORY • Turn saved highlights, notes, and page-linked questions into inspectable ideas • See meaningful connections across books without turning reading progress into a public profile • Search what you kept and review a human-readable activity history BUILD IN BOOK STUDIO • Create cited comparisons, evidence tables, literature reviews, outlines, maps, briefs, and reading plans • Let Ghostreader find relevant passages automatically, or pin the exact passages you want • Revise artifacts without losing their source snapshot or version history READ WITH FRIENDS • Share one sourced page, note, or question with people you choose • Catch up through a finite Today table instead of an endless ranked feed • Read together in invite-only rooms with quiet, qualitative signals • Reply by branching from a passage in your own copy Friends is optional. Your library, private highlights, reading position, Reading Memory, and Studio work are not shared by default. You confirm the audience for every shared page. BRING YOUR OWN READING Import EPUB books, PDFs, Markdown files, research papers, and web articles. Switch supported originals between paged and continuous reading, and keep downloaded EPUB or PDF originals available for offline reading and search. AI explanations, sync, and newly generated work require a connection. Ghostreader includes a free Normie Reader plan with up to three new reading materials per month. Avid Reader is $6.99 per month and removes the monthly import limit. AI reading features are included on both plans. An account is required. Your library is private and is not used to train public AI models. Privacy Policy: https://ghostreader.ai/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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/
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Verdict
The clearest difference is update cadence: Lumi at daily against Ghostreader AI's every 10 days. On price, ads, in-app purchases 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
Both are free to download. Ghostreader AI sells 1 in-app purchase, starting at $6.99 per month and Lumi sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.
Ghostreader AI ships an update every 10 days, Lumi daily. The most recent releases landed on October 10, 2026 and October 12, 2026 respectively.
| Parameter | Ghostreader AI | Lumi |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 10 days | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 9 MB | 18 MB |
| Age rating | 4+ | 4+ |
| Developer | lauren brendle | Ivan Trajanovski |
In-app purchases
Ghostreader AI
- Avid Reader$6.991 Month
Lumi
- Lumi Pro Monthly$5.991 Month
- Lumi Pro Yearly$29.991 Year









