Book Diary vs Litra
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Book Diary
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Description Your reading life, beautifully organized. Whether you're a casual reader or a bookworm, this app helps you track every book, capture your thoughts, and never forget what you've read. TRACK YOUR LIBRARY • Organize books by status: Currently Reading, Want to Read, Finished, or Abandoned • Search and add books instantly with cover art and details • See your reading journey at a glance JOURNAL YOUR THOUGHTS • Write notes and reflections for each book • Capture quotes, ideas, and moments that moved you • Build a personal archive of your reading history AI-POWERED INSIGHTS • Get smart suggestions and insights about your reading • Discover connections between the books you love BEAUTIFULLY DESIGNED • Clean, intuitive interface that stays out of your way • Elegant visuals that make tracking books a pleasure Your next great read is waiting. Start your reading journal today. Terms of Use: https://vadbeg.github.io/book-ai-journal/terms-of-use/ Privacy Policy: https://vadbeg.github.io/book-ai-journal/privacy-policy/
Litra
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Open your own EPUB, PDF, FB2 or text file — then ask about the page you are on and get an answer quoted from the book itself. Litra is a reader for the books and documents you already have, with Orb: an in-book companion that searches the real text before it answers. Ask "who is this character again?", "what did I miss last chapter?" or "explain this paragraph" — by typing, or by holding the orb and saying it out loud. WHY IT IS DIFFERENT Orb does not answer from a vague memory of the title. It searches and reads actual passages of the file on your device, then shows you where the answer came from. And in a novel, if the answer lies past where you have read, it asks permission first instead of spoiling it. ASK ANY PAGE • Type it, or hold the orb and speak — hands free while you read • Answers grounded in the book's own text, with the passage shown • Spoiler-free by default in stories: Orb asks before it looks ahead • Interactive recaps that walk you scene by scene and highlight each one • A separate chat per book, anchored to the passage you asked about • Orb can highlight, take a note or jump you to the right page READ ALOUD, OFFLINE • Ten voices ship inside the app — listening works on a plane, in a tunnel, with the screen locked • 0.5x to 3x speed, with the sentence lit on the page as it is spoken • Nothing to download, no internet needed to listen READ FASTER, ON PURPOSE • A guided pacer walks the words in place at the words-per-minute you set • The page turns itself as the pacer crosses it; tap to pause YOUR LIBRARY, YOUR FILES • EPUB, PDF, FB2 and .fb2.zip, TXT and Markdown — straight from Files or iCloud Drive • Scan a printed page with the camera and read it like any other book • Highlights in five colours, notes on any passage, bookmarks • Your books, highlights, notes and chats sync between your iPhone and iPad through your own iCloud BUILT FOR THE PAGES THAT WILL NOT STICK • A page turn that behaves like paper • Light, dark and system themes, paper grain, type you control • Wider letter spacing for dyslexic readers, applied for you when you ask for it • A daily reading goal and a streak that counts honest minutes, not time with the app open ON IPAD • Turn it sideways and the book opens as a two-page spread, turned two at a time • With an Apple Pencil, underline a line, circle a passage or run down the margin to select it, then ask Orb SUBSCRIPTION Litra Unlimited is a yearly subscription that starts with a 7-day free trial; the price in your currency is shown in the app before you subscribe. It includes unlimited offline listening, speed reading, questions by voice, and a monthly allowance of Orb credits for asking questions; extra credit packs are available if you want more. Payment is charged to your Apple ID at the end of the free trial. The subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for the renewal within the 24 hours before that period ends. Any unused part of the free trial is forfeited if you buy the subscription before the trial is over. Manage or cancel it any time in your Apple ID settings. Terms of Use (EULA): https://trylitra.app/terms Privacy Policy: https://trylitra.app/privacy ABOUT YOUR DATA Your library lives on your device and in your own iCloud; we never receive your files. When you ask Orb a question, that question and the passages Orb needs to answer it are sent to our server and on to our model providers to produce the answer. We do not train models on your books. Read-aloud runs entirely on your device and sends nothing anywhere. The Privacy Policy above says exactly what goes where. Litra runs on iPhone and iPad. Questions, bugs, requests: hello@trylitra.app
Screenshots
Verdict
The clearest difference is update cadence: Book Diary at every 2 days against Litra's every 3 weeks. Book Diary also leads on iOS requirement (17.6 vs 26.0). 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. Book Diary sells 1 in-app purchase, starting at $3.99 per month and Litra sells 4 in-app purchases, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.
Book Diary ships an update every 2 days, Litra every 3 weeks. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.
| Parameter | Book Diary | Litra |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 2 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 2 MB | 211 MB |
| Age rating | 4+ | 12+ |
| Developer | VADZIM TSITKO | Sergei Artiukhin |
In-app purchases
Book Diary
- Premium Monthly$3.991 Month
Litra
- Litra Unlimited7 Days trial$49.991 Year
- Small Orb credit pack$2.99
- Medium Orb credit pack$6.99
- Large Orb credit pack$17.99









