Software Alternatives, Accelerators & Startups

Linglass VS Readlang

Compare Linglass VS Readlang and see what are their differences

Linglass logo Linglass

Learn languages by watching YouTube & Netflix with dual subtitles

Readlang logo Readlang

Read your favorite webpages, translate the words you don't know, and we'll generate flashcards to help you remember.
  • Linglass Dual Subtitles on YouTube
    Dual Subtitles on YouTube //
    2026-07-12
  • Linglass Contextual Translation Words & Phrases
    Contextual Translation Words & Phrases //
    2026-07-12
  • Linglass Smart Flashcards with Spaced Repetition
    Smart Flashcards with Spaced Repetition //
    2026-07-12
  • Linglass Translate Anywhere on the Web
    Translate Anywhere on the Web //
    2026-07-12
  • Linglass AI Grammar Explanation for Any Sentence
    AI Grammar Explanation for Any Sentence //
    2026-07-12

Linglass turns YouTube and Netflix into language practice. It shows two subtitles at once โ€” the original and a translation โ€” so you can follow along in both, and every word is clickable for an instant, in-context translation.

Features: - Dual subtitles on YouTube and Netflix, kept in sync - Click any word for a contextual translation, native pronunciation (text-to-speech), and phonetic help (IPA, Pinyin, Romaji) - Spaced-repetition flashcards (FSRS) โ€” saved words become review cards automatically, with a screenshot and audio clip from the video - AI grammar explanations that break a sentence down at your level - AI-generated subtitles for videos that have no captions (speech recognition + translation) - Word-by-word segmentation for Chinese and Japanese, so you can look up a single word instead of a whole line

Works as a browser extension on Chrome, Microsoft Edge, and Yandex Browser, as a web app, and as an iOS app. Learn 10 languages, with the interface available in 21. Core features are free; an optional Premium plan removes daily limits.

  • Readlang Landing page
    Landing page //
    2023-09-21

Linglass

$ Details
freemium $7.99 / Monthly (Premium)
Platforms
Web Browser iOS iPad Mobile
Release Date
2026 May
Startup details
Country
Kazakhstan
City
Almaty
Founder(s)
Ilya
Employees
1 - 9

Readlang

$ Details
-
Platforms
-
Release Date
-
Startup details
Country
Spain

Linglass features and specs

  • Dual Subtitles
    Shows the original subtitles and a translation at the same time on YouTube and Netflix, kept in sync.
  • Click-to-Translate
    Click any word or phrase for an instant, in-context translation from the sentence.
  • Pronunciation & Phonetics
    Native text-to-speech playback plus phonetic help โ€” IPA, Pinyin for Chinese, and Romaji for Japanese.
  • Spaced-Repetition Flashcards
    Saved words become FSRS review cards automatically, with a screenshot and audio clip from the video.
  • AI Grammar Explanations
    Breaks a sentence down and explains how it is built, adapted to your level.
  • AI-Generated Subtitles
    Generates subtitles for videos that have no captions using speech recognition, then translates them.
  • Works Everywhere
    Browser extension for Chrome, Microsoft Edge, and Yandex Browser, plus a web app and an iOS app.

Readlang features and specs

  • Ease of Use
    Readlang offers an intuitive interface that facilitates easy navigation and use, even for those who are not tech-savvy.
  • Contextual Translations
    It allows users to highlight text and get immediate translations in context, which helps in better understanding and learning.
  • Vocabulary Building
    Readlang saves translated words and phrases into a personalized flashcard deck, aiding in the retention and recall of vocabulary.
  • Supports Multiple Languages
    The platform supports a wide range of languages, making it a versatile tool for language learners.
  • Integrated Web Reader
    It provides a web reader that can be used to read articles and translate words on-the-go, enhancing the practical application of language learning.

Possible disadvantages of Readlang

  • Limited Free Version
    The free version of Readlang has restricted features, and users may need to upgrade to the premium version for unlimited access.
  • Translation Quality
    The quality of translations can sometimes be inconsistent, depending on the complexity and context of the text.
  • Requires Internet
    An active internet connection is required to use Readlang, which may be a limitation in areas with poor connectivity.
  • No Mobile App
    As of now, Readlang does not offer a dedicated mobile app, which might be inconvenient for users who prefer learning on their mobile devices.
  • User Interface Limitations
    While functional, the user interface could benefit from modern design updates to enhance user experience.

Linglass videos

No Linglass videos yet. You could help us improve this page by suggesting one.

Add video

Readlang videos

How To Practice Reading In A Foreign Language | Readlang Review & Tutorial

More videos:

  • Review - Beginner's guide to Readlang
  • Review - My Thoughts on Readlang

Category Popularity

0-100% (relative to Linglass and Readlang)
Elearning Platform
100 100%
0% 0
Language Learning
4 4%
96% 96
Education
5 5%
95% 95
Translation
100 100%
0% 0

Questions & Answers

As answered by people managing Linglass and Readlang.

What makes your product unique?

Linglass's answer

Linglass turns any YouTube or Netflix video into a language lesson without leaving the player. It shows two subtitles at once โ€” the original and a translation โ€” and lets you click any word for an instant, in-context translation with native pronunciation. The standout: if a video has no subtitles at all, Linglass can generate them automatically with speech recognition and translate them, which typical subtitle tools can't do. Every word you save becomes a spaced-repetition flashcard with a screenshot and audio clip from the exact moment you saw it.

Why should a person choose your product over its competitors?

Linglass's answer

It works on the videos people already watch โ€” any YouTube or Netflix title โ€” not a small licensed catalog. The free tier is genuinely usable (unlimited saved words and a daily translation allowance), not a locked trial. And it combines in one place what competitors spread across separate tools: dual subtitles, click-to-translate, native pronunciation with IPA/Pinyin/Romaji, AI grammar explanations, and FSRS spaced-repetition flashcards โ€” plus auto-generated subtitles for videos without captions. Available as a browser extension (Chrome, Edge) and an iOS app.

How would you describe the primary audience of your product?

Linglass's answer

Self-directed learners who study through immersion โ€” watching YouTube, Netflix, anime, dramas, and interviews in a foreign language instead of taking structured courses. They're typically intermediate learners who like the "comprehensible input" approach, often studying English, Spanish, Chinese, Japanese, or Korean, and want to turn the content they already watch into study material and remember new words long-term.

What's the story behind your product?

Linglass's answer

Linglass started from a simple frustration: watching foreign-language video is one of the best ways to learn, but the workflow is clunky โ€” pausing constantly, copying words into a dictionary, then into a separate flashcard app. Linglass brings all of that into the video itself: dual subtitles, one-click translation and pronunciation, and automatic flashcards. It grew from a browser extension for YouTube and Netflix into a cross-platform tool with a web app and an iOS app.

User comments

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Social recommendations and mentions

Based on our record, Readlang seems to be more popular. It has been mentiond 53 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Linglass mentions (0)

We have not tracked any mentions of Linglass yet. Tracking of Linglass recommendations started around Jul 2026.

Readlang mentions (53)

  • Show HN: Glossarie โ€“ a new, immersive way to learn a language
    AFAIK, I think the most popular version of this idea is https://readlang.com. - Source: Hacker News / over 2 years ago
  • Learning to Listen. El podcast que mรกs recomiendo para el nivel intermedio.
    In my own case, I struggled for over a decade, to get anywhere at all useful with Spanish, until someone in this forum recommended readlang.com. I can't speak for anyone else, but for myself: just reading entire stories, as fast as I could, without stopping AT ALL when I ran into an unknown word, or tense, or idiom, made THE critical difference. Before that, every second word was causing me to stop. And... Source: almost 3 years ago
  • How to use LingQ for free?
    If you're going to do this, why not just use something like the free tier of ReadLang? Source: about 3 years ago
  • What is your favorite free language learning platform? (app, YouTube videos, Netflix subtitles, websites, etc)
    Readlang, but you have to have a basic vocabulary; otherwise it is not easy. Https://readlang.com/ I've had a love and hate relationship with Duolingo for Dutch and French. I'm trying it for Greek now and it seems to have improved over the last few years. Source: about 3 years ago
  • I need some help finding an app to read in a foreign language
    I think https://readlang.com/ is similar to LingQ and hast the option to upload files - I have never used it though, so no guarantee the formatting is better. Source: about 3 years ago
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What are some alternatives?

When comparing Linglass and Readlang, you can also consider the following products

Trancy - Learn languages through YouTube and Netflix.

Duolingo - Duolingo is a free language learning app for iOS, Windows and Android devices. The app makes learning a new language fun by breaking learning into small lessons where you can earn points and move up through the levels. Read more about Duolingo.

Immersive Translate - Immersive Dual Web Page Translation Extension, supports input box translation, mouseover translation, PDF, Epub, subtitle file, TXT file translation - Immersive Dual Web Page Translation Extension.

Memrise - Learn a new language with games, humorous chatbots and over 30,000 native speaker videos.

LingQ - Learn languages by immersing yourself in a world of interesting, authentic content!

Busuu - Join the global language learning community, take language courses to practice reading, writing, listening and speaking and learn a new language. Learn English with busuu's .