SmartBook vs Linforge
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SmartBook
This app facilitates language learning through bilingual reading. It offers parallel text, tap-to-translate functionality, and audio narration to help users master new languages by reading books and articles. Users can upload their own content or access a library of free dual-language books.
- Parallel book reader
- Tap to translate
- Real-time translation with Reverso Context
- Audio narration
- FB2 and EPUB reader
- Vocabulary builder
- AI translation
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SmartBook turns any book into a dual-language reading experience. Read Spanish, Italian, French, German, Russian, Portuguese, English and many more languages with the original text and its translation side by side, and learn languages naturally through the stories you actually want to read. WHY SMARTBOOK - Bilingual, side-by-side reading: the original and its translation together in one parallel-text view. - Tap to translate: tap any word or phrase for an instant translation and a word definition, right on the page. - Context examples: see how the word you tapped is used in real sentences. - AI translation: translation that takes the surrounding context into account. - Automatic paragraph translation: switch it on and the translation of each paragraph appears as you read. - Word and phrase pronunciation: tap a word or phrase to hear it read aloud (text-to-speech). - Your vocabulary: save words and phrases with their context, then export the list as CSV or TXT or send it to a flashcard app. - A library of 75,000+ books: create folders, rate books, and filter, sort and search to find the right book for your level. - Your own books: open EPUB (with images), FB2 and TXT files. HOW IT WORKS 1. Pick a book from the built-in library or add your own. 2. Read in parallel: the original and the translation stay side by side. 3. Tap any word or phrase to translate it and hear how it sounds. 4. Save the words you want to remember. LEARN BY READING Learn Spanish, Italian, French, German or Russian by reading real books. Start with short stories, move on to novels in the original, and let your vocabulary grow page by page, with the translation always one tap away. PERFECT FOR - Language learners who want to read real books, not only textbook drills. - Bilingual readers and polyglots who like to follow the original and the translation together. - Anyone who wants to read foreign texts without switching between apps and dictionaries. Some features require a subscription or an in-app purchase: paragraph translation, the choice of translation engines, AI translation, automatic paragraph translation, context examples, vocabulary export and premium books. Download SmartBook and start reading in two languages today.
Linforge
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Linforge is your personal English speaking coach. Practice out loud, get corrected live, and remember every word for good. SPEAK, DON'T JUST STUDY • Role-play real situations — coffee, interviews, airports — with an AI partner who stays in character. • Point your camera at anything and talk about it live. • Read AI articles built from your own words, and shadow them aloud. CORRECTED AS YOU GO • Gentle real-time grammar & vocabulary fixes. • Pronunciation scored down to the word, so you know exactly what to fix. WORDS THAT SNOWBALL • Import your Anki decks or long-press to save any word. • Practiced words flow into spaced repetition automatically, so you actually remember them. BUILT FOR REAL PROGRESS • Choose your CEFR level; conversations and articles stay just above it. • Track speaking time, streaks, and review in one place. Linforge Pro unlocks unlimited AI conversation, every partner and voice, camera mode, and deep review. Payment is charged to your Apple Account at confirmation. Subscriptions auto-renew unless canceled at least 24 hours before the period ends. Manage in Settings. Terms of Use: https://learn.aurakl.ai/terms Privacy Policy: https://learn.aurakl.ai/privacy
Screenshots
Verdict
SmartBook and Linforge are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. SmartBook sells 3 in-app purchases, starting at $1.99 per month and Linforge sells 6 in-app purchases, starting at $19.99 per month. Whichever you choose, the download price is not the number that matters.
SmartBook ships an update weekly, Linforge every 9 days. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.
| Parameter | SmartBook | Linforge |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (27 ratings) — better | — |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 27 — better | — |
| Update frequency | Weekly — better | Every 9 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.4 — better | 17.0 |
| Further details — not scored | ||
| Size | 107 MB | 30 MB |
| Age rating | 4+ | 9+ |
| Developer | Stanislau Kurs | 祥斌 都 |
In-app purchases
SmartBook
- Monthly Subscription$1.991 Month
- Annual subscription$19.991 Year
- Premium PRO$24.99
Linforge
- BasicMonthly$19.991 Month
- Pro Monthly$39.991 Month
- Basic Yearly$199.991 Year
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- Pro Yearly$399.991 Year
- 500 Conversation Turns$4.99
- 1,000 Conversation Turns$9.99









