Which streaming platforms does InterSub support?

InterSub is compatible with YouTube, Netflix, Amazon Prime Video, Coursera, Udemy, TED, LinkedIn Learning, HBO, Crunchyroll, and several other educational platforms.

Is there a free trial available?

Yes, InterSub offers a 14-day free trial of the Premium features, providing unlimited word lookups and full access to mobile integrations.

Can I use InterSub on my mobile device?

Currently, InterSub is a browser extension for desktop (Chrome, Edge, Firefox). However, you can use your phone as a remote control and sync your vocabulary to mobile apps like Anki.

What is 'Show Subtitles on Pause' mode?

This feature hides subtitles during active playback to challenge your listening skills, only revealing them when you pause the video to check a specific phrase.

How does the remote control feature work?

You can scan a QR code on your screen to open a mobile interface that allows you to pause the video, rewind, and view translations from your phone while watching on a computer or TV.

Can I export my saved words?

Yes, you can export your personal Wordbook data to Excel for offline study or to import into other flashcard applications.

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Language learning

Freemium

InterSub

Interactive dual subtitles and AI translations for language learning on YouTube, Netflix, and more. Save words to a personal wordbook and sync with mobile apps for review.

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Rating

Reviews

Upvotes

3 months ago

Listed

Language learning

Subtitles

Translation

Education

Browser Extension

YouTube Tools

Netflix Tools

Vocabulary Builder

AI Translator

Tool information

Provider

InterSub Inc.

Platforms

Google Chrome

Microsoft Edge

Firefox

Languages

English

Spanish

Japanese

Arabic

French

German

Italian

Turkish

Portuguese

Russian

Korean

Chinese

Polish

Dutch

Added to directory

3 months ago

Last updated

about 1 month ago

Rating

Not available

Pricing

Freemium

About InterSub

What the tool does and who it's for

InterSub is an AI-powered browser extension designed for interactive language learning through video content. It provides dual subtitles on major platforms like YouTube, Netflix, and Coursera, allowing users to view their native and target languages simultaneously. The tool features instant AI translations when hovering over words, automatic vocabulary saving to a personal wordbook, and advanced collocation detection for idioms and phrasal verbs. It also offers a unique remote control mode, enabling users to look up words on their mobile device while watching on a larger screen.

Key capabilities

AI-Powered Dual Subtitles: View target and native language subtitles side-by-side on supported platforms.

Instant Word Translation: Hover over any word in the subtitles for immediate definitions and context.

Personal Wordbook: Automatically save translated words and phrases for later review and practice.

Collocation Detection: Recognizes phrasal verbs, idioms, and compound nouns for natural learning.

Remote Control Mode: Use your smartphone to look up words and control playback while watching on a big screen.

Show Subtitles on Pause: A challenge mode that displays subtitles only when the video is paused.

Multi-Platform Integration: Works with YouTube, Netflix, Prime Video, Coursera, Udemy, TED, and LinkedIn Learning.

Vocabulary Sync: Export words to Excel or sync with Anki and Telegram bots for mobile learning.

Pricing

Freemium — plans below

Free

15 new word lookups per month
Unlimited dual subtitles (without AI on-the-fly translation)
Auto-save words to Wordbook
Limited access to Wordbook history

Pay-as-you-go

from $1.5

Set number of word lookups (200 to 1000)
Unlimited access to Wordbook
Unlimited dual subtitles with AI translation
Weekly vocabulary reminders

Premium

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