1
Add a page
Photograph a page of a book you own or borrowed, or type or paste the text.
Langosta Book Translator
Read the books you love in the language you’re learning
Keep reading the real book, with the translation right where your eyes are: no switching apps, no losing your place.
2
Glide
Move across the page and the translation appears in place, sentence by sentence. Switch to the original, the translation, or both.
3
Study
Highlight any sentence for an explanation, alternatives and grammar. Ask your own questions, keep notes, and hear it read aloud.
Ten languages
EnglishEspañolPortuguêsFrançaisDeutschItalianoРусский日本語中文한국어
Your books are private to you. We don’t sell your data or use your books to train AI.
Plans
Free
$0
- 10 pages a month
- 50 studies a month
- 5 listens a month
Plus
$9.99 / month
- 250 pages a month
- 1,250 studies a month
- 200 listens a month
Pro
$19.99 / month
- 600 pages a month
- 3,000 studies a month
- 1,000 listens a month
Prices in US dollars. Cancel any time: your plan stays until the end of the month you paid for.