NoaLingua Comparison
NoaLingua vs Language Reactor: the incumbent, and the local alternative
Language Reactor is the established default for dual subtitles on YouTube and Netflix, with a mature workflow many learners already know. Choose NoaLingua if you want no account, local data, PDF reading and built-in speaking and review in the same tool — and accept a far younger product.
Disclosure: NoaLingua is our product. NoaSolutions builds it and earns money when people buy it. Weigh this comparison accordingly, including the rows where we say we lose. How we research these.
Checked against Language Reactor’s official FAQ on 18 August 2026. Some rows were confirmed against their Chrome Web Store listing instead; each such row says so.
Language Reactor's official page returned only partial information. A store listing can settle version numbers, user counts and which platforms are named; it is the wrong place to learn how a product actually behaves, so we did not take behaviour from one. 7 of the 9 rows are therefore marked unverified rather than filled in from memory.
Our rule is that a claim about another product cites that product’s own page. When we cannot read the page, the honest answer is to say so and send you to check it yourself.
Side by side
| NoaLingua | Language Reactor | |
|---|---|---|
| Maturity and user base They win this | Version 0.2.17, and a Chrome Web Store listing with a single rating | Version 5.1.8, 2,000,000 users, rated 4.2 out of 5 from 4.3K ratings Chrome Web Store listing, 18 August 2026 |
| Video platforms | YouTube and Netflix have dedicated support; any other site works only if it exposes a readable caption track | Netflix and YouTube, plus text import for books and websites Chrome Web Store listing, 18 August 2026 |
| Account required | No account of any kind | Not verified on 18 August 2026. check their page ↗ |
| What the paid tier changes | Removes a deck-size cap. Every feature is available before paying | Not verified on 18 August 2026. check their page ↗ |
| PDFs and documents | Bilingual reader up to 50 pages, layout-preserving viewer, and import of your own .txt, .srt, .vtt or .md | Not verified on 18 August 2026. check their page ↗ |
| Speaking practice | Whole-video shadowing, one-sentence drilling and scored pronunciation feedback | Not verified on 18 August 2026. check their page ↗ |
| Review system | 30 practice formats and spaced repetition, with the source sentence kept on every card | Not verified on 18 August 2026. check their page ↗ |
| Keyboard layout | Its own default, plus a Language Reactor preset for fingers that know that one | Not verified on 18 August 2026. check their page ↗ |
| Dual subtitles themselves | Caption blocks rebuilt into sentences before translation, so replay lands on real boundaries — see how dual subtitles work | Not verified on 18 August 2026. check their page ↗ |
Rows marked They win this are where Language Reactor is honestly better. Every comparison on this site has at least one, because a comparison the author wins outright is one nobody should believe.
Choose NoaLingua if…
- You do not want another learning account.
- PDFs and ordinary web reading should feed the same deck.
- Shadowing, pronunciation feedback and review games matter to you.
- You prefer a one-time purchase option.
- You want your deck in a file you own.
Choose Language Reactor if…
- You want the established, widely-used subtitle interface.
- You already know its keyboard workflow and like it.
- Maturity and a large existing user base matter to you — ours is a 0.2 release.
- Its hosted web environment is part of how you study.
Common questions
Why is so much of this table unverified?
Because Language Reactor’s FAQ is a JavaScript application that serves no readable content to an automated fetch, so we could not confirm its current statements on the date we checked. Our rule is that a competitor claim cites their own page — and when we cannot read that page, we say so rather than writing from memory.
Can I use the Language Reactor keyboard layout in NoaLingua?
Yes. There is a Language Reactor preset alongside the NoaLingua default, and every player key can also be rebound individually.
Is NoaLingua a free Language Reactor alternative?
NoaLingua is free to use with every feature available; paid plans remove a cap on how many words your deck holds. What “free” covers differs between products, so compare the specific constraint that would affect your own routine.
Other comparisons
Try it on the next video you were going to watch anyway.
Free, with every feature. No account, nothing to cancel, and your deck stays on your machine.
Add to Chrome — Free Add to Chrome The Chrome Web Store still lists this as LinguaCue — same extension, rename in progress.- Free, and not a trial Every feature on the free plan — both PDF modes, shadowing, all 30 practice formats.
- No account, no email Nothing to sign up for and nothing to cancel. There is no login screen at all.
- Two dropdowns to set up Pick what you are learning and what you want translations in. That is the whole setup.
- Your words stay yours Export to Anki, CSV, a spreadsheet or a full JSON profile — free on every plan.