SmartBook: Dual Language Books: iPhone vs Android
SmartBook: Dual Language Books by Stanislau Kurs is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
4.6 ★
30k ratings, both stores
Measured
Best rank now
#123
Android · 
Education Free
Education FreeMeasured
App Store
App details
App ID
1278697399
Publisher
Stanislau Kurs
Minimum OS
iOS 16.4+
Content rating
4+
Languages
17
AR BE BG EN FR DE HE HI IT PL PT RU …
Size
111 MB
Google Play
App details
App ID
com.kursx.smartbook
Publisher
KursX
Content rating
Everyone
SmartBook: Dual Language Books downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 5k+ |
| Google Play | – | 1M+ Measured |
| Total | – | 1M+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How SmartBook: Dual Language Books makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 36 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.5 ★ | 40 |
| Google Play | 4.6 ★ | 30k 202 written reviews |
| Both stores | 4.6 ★ weighted by ratings | 30k |
About SmartBook: Dual Language Books
SmartBook turns every book into a dual-language reading experience. Read Spanish, Italian, French, English, German, Russian, Portuguese and more with the original text and its translation side by side. Follow the parallel text line by line and learn Spanish, Italian, French, English or any other language naturally by reading real books.
WHY SMARTBOOK
- Dual-language, side-by-side reading: see the original and its translation together in one parallel-text view.
- Instant tap-to-translate: tap any word or phrase to translate it on the spot. AI translation and additional translation engines are available with an in-app purchase.
- Automatic translation (subscription): switch it on and the translation of each paragraph appears as you read, so long texts flow without interruptions.
- Word and phrase pronunciation: tap any single word or phrase to hear it read aloud (text-to-speech).
- Save vocabulary as you read and review it later so new words stick.
- A library of 75,000+ books: create folders, rate books, and filter, sort and search to find the right book for your level.
HOW IT WORKS
1. Pick a book from the built-in library or add your own (epub, fb2 or txt).
2. Read in parallel: the original and the translation stay side by side.
3. Tap any word or phrase for an instant translation and to hear how it sounds.
4. Save the words you want to remember and build your personal vocabulary.
READ IN YOUR TARGET LANGUAGE
Spanish, Italian, French, English, German, Russian, Portuguese and many more. Whether you are a beginner opening your first foreign-language book or an advanced reader enjoying literature in the original, SmartBook keeps the translation just one tap away.
PERFECT FOR
- Language learners who want to read real books, not only textbook drills.
- Bilingual readers who like to follow the original and the translation together.
- Anyone growing their foreign-language vocabulary through reading.
WHY READING WORKS
Reading in a foreign language builds vocabulary, grammar and intuition in context. With dual-language, parallel-text reading you never lose the thread: understand every line, look up what you need, and keep enjoying the story.
Some features require an in-app purchase: AI translation and automatic paragraph translation are included in the subscription, and additional translation engines are unlocked by a one-time purchase or the subscription.
Download SmartBook and start reading in two languages today.
WHY SMARTBOOK
- Dual-language, side-by-side reading: see the original and its translation together in one parallel-text view.
- Instant tap-to-translate: tap any word or phrase to translate it on the spot. AI translation and additional translation engines are available with an in-app purchase.
- Automatic translation (subscription): switch it on and the translation of each paragraph appears as you read, so long texts flow without interruptions.
- Word and phrase pronunciation: tap any single word or phrase to hear it read aloud (text-to-speech).
- Save vocabulary as you read and review it later so new words stick.
- A library of 75,000+ books: create folders, rate books, and filter, sort and search to find the right book for your level.
HOW IT WORKS
1. Pick a book from the built-in library or add your own (epub, fb2 or txt).
2. Read in parallel: the original and the translation stay side by side.
3. Tap any word or phrase for an instant translation and to hear how it sounds.
4. Save the words you want to remember and build your personal vocabulary.
READ IN YOUR TARGET LANGUAGE
Spanish, Italian, French, English, German, Russian, Portuguese and many more. Whether you are a beginner opening your first foreign-language book or an advanced reader enjoying literature in the original, SmartBook keeps the translation just one tap away.
PERFECT FOR
- Language learners who want to read real books, not only textbook drills.
- Bilingual readers who like to follow the original and the translation together.
- Anyone growing their foreign-language vocabulary through reading.
WHY READING WORKS
Reading in a foreign language builds vocabulary, grammar and intuition in context. With dual-language, parallel-text reading you never lose the thread: understand every line, look up what you need, and keep enjoying the story.
Some features require an in-app purchase: AI translation and automatic paragraph translation are included in the subscription, and additional translation engines are unlocked by a one-time purchase or the subscription.
Download SmartBook and start reading in two languages today.
SmartBook: Dual Language Books iPhone
SBook: Чтение книг с переводом
Not in any tracked top chart right now.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperStanislau Kurs
CategoryEducation
PriceFree
Released
Rating★ 4.5 (40)
Version3.12
Age rating4+
First seen by us 25 Sep 2026
25 Sep 2026Installs (est.)5k+ worldwide
Rating
4.5 ★
40 ratings
Measured
SmartBook: Dual Language Books on the App Store
App details
App ID
1278697399
Publisher
Stanislau Kurs
Minimum OS
iOS 16.4+
Content rating
4+
Languages
17
AR BE BG EN FR DE HE HI IT PL PT RU …
Size
111 MB
SmartBook: Dual Language Books downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in SmartBook: Dual Language Books before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How SmartBook: Dual Language Books makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 36 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
4.5 ★
40 ratings
Measured
Ratings
40
Measured
About SmartBook: Dual Language Books
SmartBook turns every book into a dual-language reading experience. Read Spanish, Italian, French, English, German, Russian, Portuguese and more with the original text and its translation side by side. Follow the parallel text line by line and learn Spanish, Italian, French, English or any other language naturally by reading real books.
WHY SMARTBOOK
- Dual-language, side-by-side reading: see the original and its translation together in one parallel-text view.
- Instant tap-to-translate: tap any word or phrase to translate it on the spot. AI translation and additional translation engines are available with an in-app purchase.
- Automatic translation (subscription): switch it on and the translation of each paragraph appears as you read, so long texts flow without interruptions.
- Word and phrase pronunciation: tap any single word or phrase to hear it read aloud (text-to-speech).
- Save vocabulary as you read and review it later so new words stick.
- A library of 75,000+ books: create folders, rate books, and filter, sort and search to find the right book for your level.
HOW IT WORKS
1. Pick a book from the built-in library or add your own (epub, fb2 or txt).
2. Read in parallel: the original and the translation stay side by side.
3. Tap any word or phrase for an instant translation and to hear how it sounds.
4. Save the words you want to remember and build your personal vocabulary.
READ IN YOUR TARGET LANGUAGE
Spanish, Italian, French, English, German, Russian, Portuguese and many more. Whether you are a beginner opening your first foreign-language book or an advanced reader enjoying literature in the original, SmartBook keeps the translation just one tap away.
PERFECT FOR
- Language learners who want to read real books, not only textbook drills.
- Bilingual readers who like to follow the original and the translation together.
- Anyone growing their foreign-language vocabulary through reading.
WHY READING WORKS
Reading in a foreign language builds vocabulary, grammar and intuition in context. With dual-language, parallel-text reading you never lose the thread: understand every line, look up what you need, and keep enjoying the story.
Some features require an in-app purchase: AI translation and automatic paragraph translation are included in the subscription, and additional translation engines are unlocked by a one-time purchase or the subscription.
Download SmartBook and start reading in two languages today.
WHY SMARTBOOK
- Dual-language, side-by-side reading: see the original and its translation together in one parallel-text view.
- Instant tap-to-translate: tap any word or phrase to translate it on the spot. AI translation and additional translation engines are available with an in-app purchase.
- Automatic translation (subscription): switch it on and the translation of each paragraph appears as you read, so long texts flow without interruptions.
- Word and phrase pronunciation: tap any single word or phrase to hear it read aloud (text-to-speech).
- Save vocabulary as you read and review it later so new words stick.
- A library of 75,000+ books: create folders, rate books, and filter, sort and search to find the right book for your level.
HOW IT WORKS
1. Pick a book from the built-in library or add your own (epub, fb2 or txt).
2. Read in parallel: the original and the translation stay side by side.
3. Tap any word or phrase for an instant translation and to hear how it sounds.
4. Save the words you want to remember and build your personal vocabulary.
READ IN YOUR TARGET LANGUAGE
Spanish, Italian, French, English, German, Russian, Portuguese and many more. Whether you are a beginner opening your first foreign-language book or an advanced reader enjoying literature in the original, SmartBook keeps the translation just one tap away.
PERFECT FOR
- Language learners who want to read real books, not only textbook drills.
- Bilingual readers who like to follow the original and the translation together.
- Anyone growing their foreign-language vocabulary through reading.
WHY READING WORKS
Reading in a foreign language builds vocabulary, grammar and intuition in context. With dual-language, parallel-text reading you never lose the thread: understand every line, look up what you need, and keep enjoying the story.
Some features require an in-app purchase: AI translation and automatic paragraph translation are included in the subscription, and additional translation engines are unlocked by a one-time purchase or the subscription.
Download SmartBook and start reading in two languages today.
Latest updates
3.12
• Added images in EPUB books
• Added import of your own fonts
• Added an automatic pronunciation setting
• Added word definitions from Google Translate
3.11
• Added images in EPUB books
• Added import of your own fonts
• Added an automatic pronunciation setting
• Added word definitions from Google Translate
Bilingual Books: Parallel Read Android
Bilingual Books: Parallel Read is #123 in Education Free on Google Play in Russia and charting in 1 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperKursX
CategoryEducation
PriceFree
Released
Installs1M+
Rating★ 4.6 (30k)
Updated
Content ratingEveryone
Rating
4.6 ★
30k ratings
Measured
Best rank now
#123
Education FreeMeasured
Bilingual Books: Parallel Read on Google Play
App details
App ID
com.kursx.smartbook
Publisher
KursX
Content rating
Everyone
Bilingual Books: Parallel Read downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
On Android app stores
The same app (com.kursx.smartbook) on every Android store we track. Known Android installs: at least 1.4M (Google Play band + AppGallery count).
| Store | Installs | Rating | Version | |
|---|---|---|---|---|
| Google Play | 1,000,000+ | ★ 4.6 (30k) | 3.6 | Open ↗ |
| Huawei AppGallery | 400k | – | 3.6 | Open ↗ |
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
In-app revenue
Worldwide, what users spend in Bilingual Books: Parallel Read before Apple and Google take their fee.
How this is calculated
Not on any Top Grossing chart: monthly active users × spend per user for its category, measured on the charted apps nearest the bottom of the charts.
Business model: In-app purchase-led
How Bilingual Books: Parallel Read makes money: subscriptions, one-off purchases and ads.
In-app purchasesAds · 36 ad networks
One-off purchases
/mo
of revenue
Ads
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Russia | EducationFree | #123 |
Apps near Bilingual Books: Parallel Read on the chart
Education Free, around #123.
Ratings
Google Play, worldwide.
Rating
4.6 ★
30k ratings
Measured
Ratings
30k
Measured
Written reviews
202
Measured
About Bilingual Books: Parallel Read
Bilingual books with parallel translation — learn English by reading the books and stories you love. Smart Book is 2 books in one: a bilingual ebook reader and dual language reader that shows the original text and its translation side by side, so you learn languages reading naturally. Tap any word for an instant translation while reading: Google Translate, DeepL, Reverso, ChatGPT, Claude, Gemini, Yandex, NLP, ColorDict — switch translators in one tap.
KEY FEATURES:
• Bilingual books and dual language books — parallel text in two languages, learn languages reading and learn languages by reading
• Parallel translation of books — book translation, book translations, parallel book translations and parallel texts of every word in context. Parallel reader, parallel text reader, parallel book reader, translation reader, parallel text view and side by side translation
• Translate while reading — save words to your bilingual library, export to Anki or ReWord with spaced repetition
• AI translation in your reader — ChatGPT, Claude, Gemini explain meaning, grammar, synonyms; audio from native speakers
• Bilingual ebook reader for FB2, EPUB, TXT — load foreign books, import .srt subtitles as parallel text, or pick from a free language library of bilingual stories
• Bionic reading and offline mode — read bilingual books with no internet
LEARN ENGLISH BY READING BOOKS AND STORIES:
Learn English with books, learn English with stories and learn English by reading — English reading app for learners. Learn English reading, learn English through reading, stories to learn English and English stories. English reading and listening with native speaker audio. Books to learn English, books to learn languages and language learning through stories turn every chapter into a lesson. English language learning: reading short stories and graded readers, bilingual stories with translation.
READ AND LEARN LANGUAGES BY READING:
Reading with translation, reading with translations, reading books with translation, reading foreign texts and reading in a foreign language feel natural. Read in English, German, French, Spanish or Italian and read books in different languages — read with translation page by page. Learn a language, learn languages, language learning and language study with a polyglot reader.
FOREIGN BOOKS LIBRARY:
English — books in English with translations, English books. Reading books in English, texts in English with translation, English reading, read a text in English, read real books in english. Read classic novels with translation.
Spanish — books in Spanish with translations, Spanish books with translation. Texts in Spanish with translations, Spanish reading, read a text in Spanish, real books in spanish.
French — books in French with translations, French books. Texts in French with translations, French reading, read a text in French.
German — books in German with translations, German books. Texts in German with translations, German reading, read in Ger
KEY FEATURES:
• Bilingual books and dual language books — parallel text in two languages, learn languages reading and learn languages by reading
• Parallel translation of books — book translation, book translations, parallel book translations and parallel texts of every word in context. Parallel reader, parallel text reader, parallel book reader, translation reader, parallel text view and side by side translation
• Translate while reading — save words to your bilingual library, export to Anki or ReWord with spaced repetition
• AI translation in your reader — ChatGPT, Claude, Gemini explain meaning, grammar, synonyms; audio from native speakers
• Bilingual ebook reader for FB2, EPUB, TXT — load foreign books, import .srt subtitles as parallel text, or pick from a free language library of bilingual stories
• Bionic reading and offline mode — read bilingual books with no internet
LEARN ENGLISH BY READING BOOKS AND STORIES:
Learn English with books, learn English with stories and learn English by reading — English reading app for learners. Learn English reading, learn English through reading, stories to learn English and English stories. English reading and listening with native speaker audio. Books to learn English, books to learn languages and language learning through stories turn every chapter into a lesson. English language learning: reading short stories and graded readers, bilingual stories with translation.
READ AND LEARN LANGUAGES BY READING:
Reading with translation, reading with translations, reading books with translation, reading foreign texts and reading in a foreign language feel natural. Read in English, German, French, Spanish or Italian and read books in different languages — read with translation page by page. Learn a language, learn languages, language learning and language study with a polyglot reader.
FOREIGN BOOKS LIBRARY:
English — books in English with translations, English books. Reading books in English, texts in English with translation, English reading, read a text in English, read real books in english. Read classic novels with translation.
Spanish — books in Spanish with translations, Spanish books with translation. Texts in Spanish with translations, Spanish reading, read a text in Spanish, real books in spanish.
French — books in French with translations, French books. Texts in French with translations, French reading, read a text in French.
German — books in German with translations, German books. Texts in German with translations, German reading, read in Ger
What's new in 3.6
Added:
- Thousands of free books
- Ability to sort books into folders
- Tracking consecutive reading days
- Text formatting by width
- Ability to add your own API keys for Gemini, Chutes, Huggingface, Deepseek, Perplexity
- Thousands of free books
- Ability to sort books into folders
- Tracking consecutive reading days
- Text formatting by width
- Ability to add your own API keys for Gemini, Chutes, Huggingface, Deepseek, Perplexity