Trancy vs Language Reactor
Trancy and Language Reactor both add dual subtitles to video. Trancy works on more streaming sites and adds AI speaking practice. Language Reactor covers only YouTube and Netflix and has a free tier. This page compares the two, then shows where Practy is a better fit.
Last reviewed: August 2026
Trancy vs Language Reactor: which is better?
The right tool depends on how many platforms you watch and how much active practice you want.
Choose Trancy if
You watch on many platforms — Disney+, HBO Max, and Prime Video as well as YouTube and Netflix — and you want AI speaking practice and per-line drills on top of the subtitles.
Choose Language Reactor if
You mostly watch YouTube and Netflix, and you want a basic dual-subtitle reader with click-to-look-up and basic flashcards.
Choose Practy if
You want the words you meet in video to turn into typing drills, listening dictation, and conjugation practice that you keep up with on the web and iOS.
Trancy vs Language Reactor: feature comparison
Each row is one decision you make when you pick between these two extensions.
| Dimension |  Trancy |  Language Reactor |  Practy |
|---|---|---|---|
| Best for | Learners who watch across many platforms and want bilingual subtitles plus AI speaking practice. | Learners who watch YouTube and Netflix and want a basic dual-subtitle reader. | Learners who want words from video to become active practice across vocabulary, listening, and conjugations. |
| Where it works | YouTube, Netflix, Disney+, HBO Max, and Amazon Prime Video. | YouTube and Netflix only. | YouTube, Netflix, HBO Max, and Disney+. |
| Reading on the web | Optional bilingual translation of web pages on demand. | No reading mode outside supported video platforms. | Reading mode adds inline translations and one-click word saves to articles, blogs, and any other web page. No import step. |
| Active practice | Per-line practice popups (fill-in-the-blank, dictation, multiple-choice) and an AI speaking coach. | A flashcard panel and PhrasePump, a listening drill that replays clips. | Typing-based vocabulary drills, listening dictation where you type what you hear, saved-word review, and progress analytics. |
| Conjugation drills | No conjugation practice. | No conjugation practice. | Verbs you save flow into conjugation drills for Spanish, French, English, Portuguese, Italian, Hebrew, and Arabic. |
| Apps and devices | Browser extension and a mobile app. | Chrome extension only. | Chrome extension plus web and iOS apps. Your progress follows your account. |
| Cost | Free tier covers up to 40 AI-transcribed videos per day. Premium runs from $3.49 to $8.79 per month. | Free tier excludes machine translation and caps word saving. Pro is $6 per month. | Free tier covers every exercise type with caps on saved words and verbs. Plus removes the caps for $7.99 per month or $69.99 per year ($5.83 per month). |
Best for
Trancy Learners who watch across many platforms and want bilingual subtitles plus AI speaking practice.
Language Reactor Learners who watch YouTube and Netflix and want a basic dual-subtitle reader.
Practy Learners who want words from video to become active practice across vocabulary, listening, and conjugations.
Where it works
Trancy YouTube, Netflix, Disney+, HBO Max, and Amazon Prime Video.
Language Reactor YouTube and Netflix only.
Practy YouTube, Netflix, HBO Max, and Disney+.
Reading on the web
Trancy Optional bilingual translation of web pages on demand.
Language Reactor No reading mode outside supported video platforms.
Practy Reading mode adds inline translations and one-click word saves to articles, blogs, and any other web page. No import step.
Active practice
Trancy Per-line practice popups (fill-in-the-blank, dictation, multiple-choice) and an AI speaking coach.
Language Reactor A flashcard panel and PhrasePump, a listening drill that replays clips.
Practy Typing-based vocabulary drills, listening dictation where you type what you hear, saved-word review, and progress analytics.
Conjugation drills
Trancy No conjugation practice.
Language Reactor No conjugation practice.
Practy Verbs you save flow into conjugation drills for Spanish, French, English, Portuguese, Italian, Hebrew, and Arabic.
Apps and devices
Trancy Browser extension and a mobile app.
Language Reactor Chrome extension only.
Practy Chrome extension plus web and iOS apps. Your progress follows your account.
Cost
Trancy Free tier covers up to 40 AI-transcribed videos per day. Premium runs from $3.49 to $8.79 per month.
Language Reactor Free tier excludes machine translation and caps word saving. Pro is $6 per month.
Practy Free tier covers every exercise type with caps on saved words and verbs. Plus removes the caps for $7.99 per month or $69.99 per year ($5.83 per month).
Where Practy fits in
Trancy and Language Reactor help you understand a video. Practy helps you remember it.
Save while you watch
Save words with one click from YouTube, Netflix, HBO Max, and Disney+.
Works where you read too
Reading mode adds inline translations to any web page, so articles and blogs feed the same practice loop.
Turns words into drills
Saved words become typing drills and listening dictation, not just a subtitle you scroll past.
Verbs become conjugation practice
Verbs you save flow into conjugation drills across seven languages.
Synced across devices
Save in the browser and review on the web or iOS.
Frequently asked questions
Common questions about Trancy, Language Reactor, and how Practy compares.
Is Trancy better than Language Reactor?
Trancy is better if you watch across many platforms and want AI speaking practice and per-line drills. Language Reactor is better if you mostly watch YouTube and Netflix and want a basic dual-subtitle reader.
Is Language Reactor free?
Language Reactor has a free tier for dual subtitles and lookup on YouTube and Netflix, but it excludes machine translation and caps word saving. Pro is $6 per month.
Do Trancy or Language Reactor practice conjugations?
No. Neither tool has conjugation drills. Practy turns verbs you save into conjugation practice across Spanish, French, English, Portuguese, Italian, Hebrew, and Arabic.
What is a good alternative to Trancy and Language Reactor?
Practy is a good alternative if you want the words you meet in video to become typing drills, listening dictation, and conjugation practice that syncs across the web and iOS.
In summary
Trancy and Language Reactor make video easier to understand. Practy turns what you watch into practice you return to, on the web and iOS.
Try the Practy extension