InterSub

InterSub is an AI-powered language learning tool that provides interactive dual subtitles and instant word translations for videos. It helps users boost language skills while watching content on popular streaming and educational platforms.

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At a glance

Pricing

Freemium · Paid

Free tier

Yes

API

Skill level

Non-technical

About

What is InterSub?

InterSub is an AI-powered browser extension for Chrome, Edge, and Firefox designed to make language learning effortless and effective. It offers interactive dual subtitles, displaying content in both your target language and native language simultaneously. The tool provides instant AI-generated definitions and context translations when hovering over any word. All translated words are automatically saved to a personal vocabulary list, or "wordbook," for easy review. InterSub supports over 30 languages and integrates with platforms like YouTube, Netflix, Prime Video, Coursera, and Udemy, allowing users to learn while enjoying their favorite shows and courses. It also features mobile integration for on-the-go learning and a remote control option for big-screen viewing.

Best used for

Ideal for students and teachers who need to learn new languages, understand foreign content, and build vocabulary effectively. Especially valuable for integrating language practice into daily entertainment and educational viewing on various streaming platforms.

Common actions

learn new languages

translate subtitles instantly

build vocabulary

practice language skills

vocabularylanguage learningSubtitlesaiBrowser Extensionsvideo watchingtranslation

Capabilities

Key features

AI-assisted dual subtitles
Instant word translations
Personal vocabulary wordbook
Mobile learning integration
Multi-platform support
Collocation detection
Remote control

Target Audience

studentteacher

Integrations

youtubenetflixprime-videohbo-maxcrunchyrolltedcourseraudemy+ 3 more

Pricing & Plans

Freemium · Paid

Free Plan available. Not publicly disclosed. Check intersub.cc for current pricing.

FAQs

Which platforms does InterSub support for dual subtitles and translations?

InterSub supports a wide range of popular streaming and educational platforms, including YouTube, Netflix, Prime Video, HBO Max, Crunchyroll, TED, Coursera, Udemy, and LinkedIn Learning. It also allows word lookups on almost any website.

Can I use InterSub on my mobile device?

While InterSub is primarily a browser extension for desktop, it offers a Remote Control feature to look up words from your mobile device during playback. Additionally, you can sync your wordbook to mobile apps like Anki or Telegram bots for on-the-go learning.

How does InterSub help with vocabulary building?

InterSub automatically saves all words you look up into a personal vocabulary list, or "wordbook." This wordbook is accessible in your InterSub Dashboard, allowing for easy review and reinforcement of new vocabulary. You can also sync it with other mobile apps.

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InterSub

At a glance

What is InterSub?

Key features

Target Audience

Integrations

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What is InterSub?

Key features

Target Audience

Integrations