Tenth Word: Learn English

English inside Russian books

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Open a Russian book and some of the words are already English. How many is up to you: the ring turns from 0 to 100%. At 10% every tenth word is English — hence the name. It still reads like an ordinary book, but every paragraph hands you a new English word in a context where the meaning is obvious without a dictionary. Your brain fills in the rest — that is how vocabulary sticks. If it does not, tap the word to see what it replaced. Learned a word? Remove it, and the freed percent goes to the next one. — For native Russian speakers: the books and the interface are in Russian — Your own books: EPUB, FB2, TXT — Fully offline: the dictionary lives inside the app — Word order never reshuffles when you change the percentage — Proper nouns and ambiguous words are never translated — Themes, typefaces, size, line spacing — No ads, no data collection Three days free. Then ten pages a day free, or a one-time purchase — not a subscription.

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Page turns are animated now, and you can pick the direction — sideways or up and down — in Settings. Dictionary: a word is no longer replaced by its whole definition, and demonstrative pronouns no longer turn into Greek letters.

The developer, YURI KOTENIATKIN, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    • YURI KOTENIATKIN
    Size
    • 44.1 MB
    Category
    • Books
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • Russian
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Yurii Koteniatkin