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Otto

ExtensionEducation
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Overview

Read any page in French, Spanish, German, Italian, Portuguese, Chinese, Hindi or Arabic, at your level. Tap a word for its meaning.

Otto turns the web you already read into language practice. Open any page, or press play on a show, and Otto weaves words from the language you're learning into text written in the language you already speak. The sentence still reads naturally; you just meet new words where their meaning is obvious from everything around them. You set how many, from a few of the most common words to nearly the whole page, and raise the level as you improve. Click any woven word and Otto shows you what it means: the translation, the dictionary definition, its pronunciation and more. Save it to review later. LANGUAGES Otto works in pairs: the language of the page, and the language you're learning. English → learn French, Spanish, German, Italian, Portuguese, Chinese, Hindi or Arabic French → learn English Spanish → learn English Italian → learn English Portuguese → learn English German → learn English Japanese → learn English Korean → learn English Chinese → learn English Hindi → learn English Arabic → learn English More pairs are on the way. WHY IT WORKS Most language learning fails for one reason: it's a separate thing you have to make yourself do. An app to open. A lesson to sit through. Sentences about nothing, written for no one. Otto isn't a separate thing. It lives inside what you were already going to do today. The article you were going to read anyway. The show you were going to watch tonight. You were going to spend that hour regardless, and now it's teaching you a language. That changes two things. First, you keep going, because there's nothing to keep up with. Second, you remember more, because every new word arrives inside a sentence you understood, about something you actually cared about. That's how meaning sticks: not from a flashcard, but from the moment you needed the word and it was right there. THE RIGHT AMOUNT FOR YOU The 200 most common words in a language carry a huge share of everyday text; the top 2,000 carry most of it. Otto's levels follow that curve, from the top 200 up to Native, so you always learn the most useful words first and the page always stays readable. WORKS ON SUBTITLES TOO Otto weaves Netflix subtitles and YouTube captions as you watch, so your evening viewing counts as well. GETTING STARTED Install, create a free account, pick your languages, and open a page. That's it. Weave every page automatically or only when you ask, and your progress syncs with the Otto iPhone app. The free plan covers everyday reading; Otto Pro and Otto Max give you more. Don't study a language. Live inside one.

Details

  • Version
    0.19.4
  • Updated
    October 2, 2026
  • Features
    Offers in-app purchases
  • Size
    971KiB
  • Languages
    English
  • Developer
    Otto Technologies Limited
    Mullacott Cross Industrial Estate Unit 9 Wilderbrook Way Ilfracombe EX34 8FN GB
    Website
    Email
    admin@otto-app.com
    Phone
    +44 7543 634675
  • Trader
    This developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
  • D-U-N-S
    235185615

Privacy

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Otto has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.

Otto handles the following:

Personally identifiable information
Authentication information
Web history
User activity
Website content

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes
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