
Leo: Read and Learn Words
Books, Translation, Flashcards
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Free
In-App Purchases
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About
Read books in the language you're learning. Translate any word on the page, turn it into a card and read aloud. Add your own books, or start with our sample.
TRANSLATION ON THE PAGE
Press and hold a word, phrase or paragraph: the translation appears without closing the book, with the dictionary form and the sentence it came from. Translation runs on your device, even offline.
YOUR WORDS BECOME CARDS
Save a word with its sentence from the book. Spaced repetition brings it back just as it starts to fade, and exercises get harder as the word gets stronger.
READ ALOUD, LEO LISTENS
Read a page aloud and see which words were recognized: green, yellow or red. Speech is recognized on your device and never saved. The color is a hint, not a pronunciation score.
SEE YOUR WORDS IN THE TEXT
Words you're learning are highlighted and learned ones underlined, in every book and every form of the word.
WATCH YOUR VOCABULARY GROW
Known words, streak, daily goal, review forecast and achievements.
A READER THAT RESPECTS YOU
EPUB, FB2 and PDF. Font, size, theme, bookmarks and notes. No ads, no tracking, no sign-up. Your books and words stay on your device and in your iCloud.
Book languages: English, Spanish, Russian. Interface: English, Spanish, Russian.
LEO PRO
Free includes 10 new cards and 2 mini-deck trainings a day, and 10 minutes of reading aloud. Reviewing due words is always free. Leo Pro removes these limits: a yearly subscription with a free week for new subscribers, or a one-time purchase.
The subscription renews automatically unless you cancel at least 24 hours before the end of the current period. Payment is charged to your Apple Account. Manage or cancel it in your Apple Account settings.
Terms of Use: https://bavett1.github.io/leo/terms/
Apple's license agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://bavett1.github.io/leo/privacy/
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What's New in Leo
1.1.1
November 9, 2026
More natural pronunciation: Leo now uses the best voice downloaded on your device. The Settings show how to get better voices. Plus small improvements.
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Subscriptions & In-App Purchases
Leo Pro Yearly
No daily limit on new cards
$14.991 Year
7 Days trial





