Pricing / Twinread vs Language Reactor

Twinread vs Language Reactor

Updated

Both put two lines of subtitles on a YouTube video: the original and a translation. Language Reactor is built around films and series, with a transcript panel and saved words. Twinread also translates web pages and PDFs in place, and makes the translation on your computer.

We ran both on the same captioned YouTube talk on 19 October 2026. Facts about Language Reactor come from that run and from its Chrome Web Store page, read the same day. Twinread is our own tool, so read the table with that in mind.

TopicLanguage ReactorTwinread
Users and ratingAbout 2,000,000 users and 3.7 stars on the Chrome Web StoreNew, with no reviews yet
Last updateVersion 6.0.0, 18 October 2026Version 1.2.1, October 2026
Video sitesNetflix and YouTube, by its store pageYouTube, after you allow it once, and sites whose video has captions
On the videoTwo subtitle lines, and a transcript panel beside the player with Words and Saved tabsTwo lines on the video: the original and the translation under it
AccountNone for YouTube subtitles; it asks for your native language at first useNone
Where the translation is madeNot checkedOn your computer, by the translator built into the browser
Web pages and PDFsImports text and websites into its own reader, with machine translation and speech, by its store pageTranslates the page in place, under each paragraph, and reads PDFs that contain text
FreeFree, with in-app purchasesEvery page and whole PDFs; the first 10 minutes of each video
BrowsersGoogle Chrome on Windows and macOS, by its store pageGoogle Chrome 138 or later and Microsoft Edge 148 or later, on desktop

Sources, read on 19 October 2026: Language Reactor on the Chrome Web Store (users, rating, version, description, in-app purchases) and both extensions on a TED talk with English captions. Two reviews on its store page, of 2 and 14 October 2026, report subtitle errors (“SERVER_ERROR”; “constantly shows errors and fails to translate subtitles”); on our run it worked.

When Language Reactor is the better pick

Pick Language Reactor if you learn from films and series, on Netflix as well as YouTube, and want a transcript beside the video and a list of saved words. It has 2 million users and was updated on 18 October 2026.

When Twinread is the better pick

Pick Twinread if you also read in the language you learn: web pages with the translation under each paragraph, and PDFs that contain text. The translation is made on your computer, there is no account, and it runs in Edge as well as Chrome.

Questions

Does Language Reactor need an account?

Not for dual subtitles on YouTube. On 19 October 2026 it showed them with no sign-in, after asking for a native language. The store lists in-app purchases for its paid features.

Where does Twinread make the translation?

On your computer, with the translator built into Chrome 138 or later and Edge 148 or later. The first use of a language pair downloads its model; after that the lines appear when you turn subtitles on.

What does Twinread Free cover on video?

The first 10 minutes of each video, on YouTube and on sites whose video has captions. Whole videos need Pro.

Does Twinread work on Netflix?

We have not checked Netflix with this version. Twinread shows subtitles on YouTube and on sites whose video player carries captions.

See also

Try Twinread free

Twinread is free, with no limit on pages or length. Chrome does the translating, so the text stays on your computer.

Twinread is an independent product and is not affiliated with the tools it is compared with.