Bookstar vs Reader AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bookstar
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Read English books in the original — the ones you actually want to read. Bookstar keeps the translation right under the original text, page after page. Nothing to look up, nothing to type, no reason to put the book down. The safety net is already there. HOW IT WORKS 1. Add your own EPUB — from Files, iCloud, or anywhere on your iPhone.** 2. Read the original. The translation into your language stays below it, passage by passage.* 3. Tap a star to hear that sentence read aloud, and catch how the language actually sounds.* 4. Open Explain on a phrase that feels odd. It tells you what it means in plain words, with an everyday example.* WHAT YOU GET • Your own library — import the EPUB files you already own** • Translation always in view: no pop-ups, no dictionary detours, no losing your place* • Audio for any marked sentence — rhythm and pronunciation, not just meaning* • Translate into 11 languages: Spanish, French, German, Ukrainian, Polish, Portuguese, Japanese, Chinese, Vietnamese, Turkish, Russian • A free classic included, so you can start today: The Thirty-Nine Steps by John Buchan • A quiet reader — no streaks, no badges, no feed • Explanations for idioms and odd phrases — the meaning in plain words, and an example you can hear* WHO IT IS FOR • You are around B1–B2 in English, and textbooks stopped being enough • Your favourite author's new book is not translated into your language — and might never be • You moved abroad and need the living language, not classroom phrases • You are preparing for an exam and need real reading plus pronunciation *READING PAST PAGE 10 REQUIRES A SUBSCRIPTION The first 10 pages of a book are free. That includes the included classic and one book you import. Translation and audio are included on those free pages. **ONE IMPORTED BOOK IS FREE You can import one EPUB of your own without a subscription. Adding more of your own books requires Bookstar Premium. BOOKSTAR PREMIUM • Weekly Premium — 1 week — $9.99 • Six Month Premium — 6 months — $49.99 (equivalent to $8.33/month), with a 7-day free trial Prices are in U.S. dollars. In other countries the price is shown in your local currency on this page and on the subscription screen, before any payment is taken. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours before the period ends. Any unused part of a free trial is forfeited when you buy a subscription. You can manage or cancel in Settings → [Your Name] → Subscriptions. ABOUT THE BOOKS Bookstar is a reader, not a bookstore. We do not sell, host, or distribute books — you import EPUB files you already own. The one title included with the app is in the public domain. Format: EPUB only. Books must be in English; the translation can be any of the 11 languages above. Terms of Use: https://bookstar.cc/terms Privacy Policy: https://bookstar.cc/privacy
Reader AI
Enhance your reading and language learning experience by importing books and articles. Get AI-powered explanations, translations, and summaries. Listen to narrated text and organize your library with customizable features.
- AI-powered word and sentence explanations
- In-context translation
- Text-to-speech narration
- Import EPUB, TXT, MOBI, AZW3, PDF
- Website and blog following
- Customizable reading layout
- PDF annotation
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Read books and web articles in their original language, with help when you need it. Reader AI brings reading, language learning and listening together. Import your own books, save articles from a link or the Safari share sheet, or follow websites with Feeds, then read in a layout you can make your own. READ AND UNDERSTAND Look up words in context and ask AI to explain sentences, expressions and passages. Set your native language and level for explanations that fit you. Read books and articles side by side with a translation, or the translation only. Ask about a book, quoting several passages, images or part of a PDF page, follow answers back to the text, or get an AI summary of the book or what you've read so far. LISTEN AND FOLLOW ALONG Narration runs on your device after you download a voice pack. Follow the highlighted text, change voices, turn on translated subtitles, and switch between the reader and player without losing your place. PDFs with selectable text can be narrated too. With Pro, Daily Podcast turns new articles from your feeds into an episode each day. BUILD YOUR LIBRARY Import EPUB, TXT, MOBI, AZW3, PDF and other formats. Follow websites and blogs with Feeds. Import from your WebDAV library or OPDS catalogs. Dropbox, OneDrive, Box, Google Drive imports and the Discover catalog are available outside mainland China. Add books to Want to Read and organize articles into folders. MAKE READING YOUR OWN Adjust fonts, spacing and colors, choose a page-turning effect, and use an external keyboard. On iPad, read in separate windows with a sidebar for contents, search and thumbnails. Highlight passages and add notes. Write on PDFs with Apple Pencil or your finger, using pens, highlighter, shapes and a zoom window, then export them. Text on scanned PDF pages is recognized on your device, so you can look up words. REMEMBER WHAT YOU READ Save words, expressions and sentences in Saved with their meanings and original sentences. Review them, track your progress and return to the original passage. FREE READING AND PRO Reading, highlighting, notes and PDF annotation are free. The free bookshelf holds 3 books (articles and the sample book don't count); add a spot for 3 AI credits. The sample book and your first 3 books are free to listen to and translate; other books unlock listening or translation for 5 credits each. A one-time No bookshelf limit purchase or Pro removes the limit and makes every book free to listen to and translate. Free AI credits let you try lookups, explanations and article translation; outside mainland China, you can also watch a short video for credits. Pro includes lookups, explanations, pronunciation, Book Chat, AI Summary, Similar Books and Daily Podcast. Plans and prices are shown in the app. NO APP ACCOUNT REQUIRED Your library, progress and study data are stored on your device and in your iCloud storage. AI features process the requested text and needed context. Narration and book translation run on your device; for Daily Podcast, our server reads your feeds to write each episode. Reward videos outside mainland China are provided by Google AdMob. AI output may contain errors. Only import content you have the right to use. Requires iOS 18 or later. Payment is charged to your Apple Account when you confirm a purchase. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel subscriptions in your Apple Account settings and restore purchases in the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://reader.lorpaves.com/privacy/ Terms of Service: https://reader.lorpaves.com/terms/
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Verdict
The clearest difference is ads: Bookstar at none against Reader AI's shown. On price, update cadence, 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. Bookstar sells 3 in-app purchases, starting at $5.99 per month and Reader AI sells 7 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.
| Parameter | Bookstar | Reader AI |
|---|---|---|
| Price | Free | Free |
| Rating | — | 2.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days | Every 5 days |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 18.2 | 18.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 85 MB |
| Age rating | 4+ | 12+ |
| Developer | Anatolii Malynovskyi | 江 刘 |
In-app purchases
Bookstar
- Monthly$5.991 Month
- Weekly$6.997 Days
- Six Months$29.996 Months
Reader AI
- Monthly$6.991 Month
- Quarterly$19.993 Months
- Yearly7 Days trial$69.991 Year
- 100 points$9.99
- No bookshelf limit$9.99
- 300 points$29.99
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- 1000 points$89.99








