InterSub: Adds dual subtitles and interactive hover dictionaries directly to streaming video platforms, mimicking core Language Reactor features. InterSub records 71,644 monthly visits with -11.2% month-over-month growth and Freemium, Free Trial pricing. Language Reactor records 1,878,769 monthly visits with +0.6% growth and Freemium pricing.
Learn languages with dual subtitles and a hover dictionary in any video
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
| Dimension / Metric | ||
|---|---|---|
| Official Domain | intersub.cc | languagereactor.com |
| Pricing Model | Freemium, Free Trial | Freemium |
| Monthly Visits | 71.64K (71,644) | 1.88M (1,878,769) |
| MoM Traffic Delta | -9.04K (-11.2%) | +10.73K (+0.6%) |
| Primary Market & Share | 🇺🇸 United States (15.2%) | 🇺🇸 United States (13.3%) |
| Direct Visits / mo | 31.96K | 1.45M |
| User Rating | 4.2 | 4.4 |
| Supported Platforms | Website | Website |
Learn languages with dual subtitles and a hover dictionary in any video
Watch with the subtitle of the language you are learning and your native language stacked, one line above the other, directly inside the video player.
Hover any subtitle word and the video pauses while a pop-up shows an AI-generated definition plus a translation of the surrounding context.
Every word you look up lands in your Wordbook with its original context, so you build a personal list from scenes you actually watched.
If an episode has no subtitles in your language, InterSub translates them on the fly with AI and shows the translation as the second line.
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
View your target language together with a translation, pause, replay single lines, and jump back to the previous subtitle with a hotkey.
Hover or click any subtitle word to see definitions, part of speech, and pronunciation without leaving the video.
Automatically saves looked-up words and phrases, then quizzes you with the original context to build durable recall.
Bring the same translation and lookup workflow to ebooks, PDFs, articles, and other web pages.
Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.
Provides powerful bilingual translation across streaming video and web pages, though less focused on dedicated flashcard workflows.
SpecialistLearn a new language by talking to lifelike AI tutors
SpecialistLearn a new language by talking to lifelike AI tutors
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.
Offers similar dual-subtitles and video translation for Netflix and YouTube, but with a more modern AI interface.
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
SpecialistSpeak a new language from day one with human-like AI and expert human tutors
Translates and dubs YouTube videos into multiple languages while displaying bilingual subtitles for easier comprehension.
Translates and dubs YouTube videos into multiple languages while displaying bilingual subtitles for easier comprehension.
SpecialistBrowser translation, dictionary, and AI writing assistant
SpecialistBrowser translation, dictionary, and AI writing assistant
Adds dual-language subtitles and inline translations to web pages and videos, supporting general reading alongside video study.
Adds dual-language subtitles and inline translations to web pages and videos, supporting general reading alongside video study.
SpecialistFocuses on real-time video translation and interactive explanations, offering a mobile-friendly alternative for media-based learning.
SpecialistFocuses on real-time video translation and interactive explanations, offering a mobile-friendly alternative for media-based learning.
Turns Netflix and YouTube media into interactive vocabulary practice sessions, though with less granular subtitle export options.
Turns Netflix and YouTube media into interactive vocabulary practice sessions, though with less granular subtitle export options.
AI language learning built into every page you read
AI language learning built into every page you read
Learn languages from real videos with word-by-word subtitles
Learn languages from real videos with word-by-word subtitles
Read the web, documents and video in two languages at once
Read the web, documents and video in two languages at once
