How WordLinea compares

Everyone translates. WordLinea also does what comes after: it keeps the words you meet and brings them back just before you forget.

WordLineaRead FrogImmersive TranslateTrancyLanguage Reactor
What the free plan includesEvery feature; Pro only adds usage, and translation keeps going when usage runs out10 notes; limited flashcard review1Unlimited page and YouTube subtitle translation; AI-generated video subtitles are paid1Up to 100 words and 50 sentences; AI subtitles for YouTube are paid1Saving words only in PhrasePump; machine translation needs Pro1
Pro, per yearUS$24.99 (coming soon)US$30 (early-bird price)1US$119.881US$42 (US$29.40 until October 31)1Not listed on its site
How you reviewA question when it’s due; your answer schedules the next one, with no grading yourselfFlashcards; you rate each one Again / Hard / Good / Easy2Its site doesn’t mention review2Flashcard practice, with questions built from example sentences2Test cards; saving words mostly needs Pro1
What a word saved from subtitles keepsThe line, its context and the exact second in the video; one click takes you backSaved as a flashcard; its site doesn’t say whether the line or the time is kept3Its site doesn’t mention saving words2Pronunciation, meaning and the example sentence; its site doesn’t mention the time2Screenshots and audio when exported to Anki, with Pro1
iPhone and iPadA Safari extension that translates subtitles and saves wordsNot yet; its site says iOS is planned3A Safari extension3Its app translates YouTube subtitles only; there is also a Safari extension3Computer only2
  1. What the free plan includes

    WordLinea
    Every feature; Pro only adds usage, and translation keeps going when usage runs out
    Read Frog
    10 notes; limited flashcard review1
    Immersive Translate
    Unlimited page and YouTube subtitle translation; AI-generated video subtitles are paid1
    Trancy
    Up to 100 words and 50 sentences; AI subtitles for YouTube are paid1
    Language Reactor
    Saving words only in PhrasePump; machine translation needs Pro1
  2. Pro, per year

    WordLinea
    US$24.99 (coming soon)
    Read Frog
    US$30 (early-bird price)1
    Immersive Translate
    US$119.881
    Trancy
    US$42 (US$29.40 until October 31)1
    Language Reactor
    Not listed on its site
  3. How you review

    WordLinea
    A question when it’s due; your answer schedules the next one, with no grading yourself
    Read Frog
    Flashcards; you rate each one Again / Hard / Good / Easy2
    Immersive Translate
    Its site doesn’t mention review2
    Trancy
    Flashcard practice, with questions built from example sentences2
    Language Reactor
    Test cards; saving words mostly needs Pro1
  4. What a word saved from subtitles keeps

    WordLinea
    The line, its context and the exact second in the video; one click takes you back
    Read Frog
    Saved as a flashcard; its site doesn’t say whether the line or the time is kept3
    Immersive Translate
    Its site doesn’t mention saving words2
    Trancy
    Pronunciation, meaning and the example sentence; its site doesn’t mention the time2
    Language Reactor
    Screenshots and audio when exported to Anki, with Pro1
  5. iPhone and iPad

    WordLinea
    A Safari extension that translates subtitles and saves words
    Read Frog
    Not yet; its site says iOS is planned3
    Immersive Translate
    A Safari extension3
    Trancy
    Its app translates YouTube subtitles only; there is also a Safari extension3
    Language Reactor
    Computer only2

Other products are described from their own sites, as of October 2026.

Read Frog

  1. 1Read Frog pricing readfrog.app/en/pricing
  2. 2Read Frog’s GitHub README github.com/mengxi-ream/read-frog
  3. 3Read Frog home page readfrog.app/en

Immersive Translate

  1. 1Immersive Translate pricing immersivetranslate.com/en/pricing
  2. 2Immersive Translate home page immersivetranslate.com
  3. 3Immersive Translate on the App Store apps.apple.com/app/id6447957425

Trancy

  1. 1Trancy pricing trancy.org/pricing
  2. 2Trancy manual: practice words manual.trancy.org/en/get-started/use-learning-deck/practice-words
  3. 3Trancy manual: download the mobile app manual.trancy.org/en/get-started/download-mobile-app

Language Reactor

  1. 1Language Reactor FAQ languagereactor.com/help/faq
  2. 2Language Reactor in the Chrome Web Store chromewebstore.google.com/detail/language-reactor/hoombieeljmmljlkjmnheibnpciblicm
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