Learn languages effortlessly through interactive video subtitles
InterSub turns streaming platforms into language classrooms by showing dual subtitles and instant translations while you watch. It automatically saves new words to your personal vocabulary list, letting you learn naturally without interrupting your viewing experience.
Side-by-side native/target language captions for context
Hover-over AI definitions without pausing videos
Identifies idioms/phrasal verbs in context
Works on Netflix, YouTube, Coursera & 8+ platforms
Auto-saves vocabulary to popular flashcard apps
Works on YouTube, Netflix, Prime Video, Coursera, Udemy, LinkedIn Learning, TED, and Crunchyroll with more coming soon.
Supports English, Spanish, and 30+ other languages for translations and subtitles.
While there's no mobile app, you can sync vocabulary to mobile flashcard apps via Anki integration.
This tool is best for:
Explore more niche AI tool websites by clicking on a tag* (works only if it has enough tools).
InterSub can be integrated with these apps and services:
Recent data shows that InterSub has 99.1K monthly visits (-3.0% decrease from the previous month), 43.0% bounce rate, and average 2.17 pages per visit.
Traffic is primarily driven by 6 different sources, with users from 5 countries worldwide, led by Taiwan contributing 17% of total traffic. SEO performance is shown by 5 tracked keywords, with "intersub" being the top-performing keyword with 2.1K monthly searches. See below for more info.
Monthly Visits
99.1K
Pages per Visit
2.17
Bounce Rate
43.0%
Average Time on Site
57s
| SEO Keyword | Volume | CPC |
|---|---|---|
| intersub | 2.1K | - |
| intersub how to cancel subscription | 200 | - |
| double subtitles extension | 310 | - |
| dual language subtitles extension | 150 | - |
| intersub integrates | 0 | - |
| Source | Traffic Share |
|---|---|
| Direct | 51% |
| Search | 38% |
| Social | 3% |
| Referrals | 7% |
| Paid Referrals | 1% |
| Country Name | Traffic Share |
|---|---|
 | 17% |
 | 11% |
 | 5% |
 | 4% |
 | 4% |
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