AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research
BiRead records 13,656 monthly visits with -15.8% month-over-month growth and Freemium pricing. InterSub records 71,644 monthly visits with -11.2% growth and Freemium, Free Trial pricing.
Turn any webpage into bilingual reading in one click
| Dimension / Metric | ||
|---|---|---|
| Official Domain | biread.com | intersub.cc |
| Pricing Model | Freemium | Freemium, Free Trial |
| Monthly Visits | 13.66K (13,656) | 71.64K (71,644) |
| MoM Traffic Delta | -2.56K (-15.8%) | -9.04K (-11.2%) |
| Primary Market & Share | 🇺🇸 United States (36.2%) | 🇺🇸 United States (15.2%) |
| Direct Visits / mo | 5.4K | 31.96K |
| User Rating | 4.2 | 4.2 |
| Supported Platforms | Website | Website |
Turn any webpage into bilingual reading in one click
Add translations to any webpage with a single click, keeping the original text in place alongside the translated version.
The no-cost plan runs on Google Translate and covers 32 languages, which is enough for everyday reading of many popular languages.
The paid tier uses AI models that understand context, so idioms and culturally specific phrasing come out natural instead of literal.
Displays your native language only where you need it, turning authentic pages into study material without overwhelming you with full translations.
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.
AI sidebar and browser agent for reading, writing and research
AI sidebar and browser agent for reading, writing and research

Bilingual AI translation for websites, documents, video and images
Bilingual AI translation for websites, documents, video and images
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
Learn languages from Netflix, YouTube, and real-world texts with dual subtitles and AI
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
An AI language learning assistant with bilingual subtitles, immersive translation, and vocabulary practice
AI bilingual translator for web pages, PDFs, and images
AI bilingual translator for web pages, PDFs, and images
SpecialistFree bilingual browser extension that translates any page with the AI engine you choose
SpecialistFree bilingual browser extension that translates any page with the AI engine you choose
AI dubbing and bilingual subtitles for any YouTube video
AI dubbing and bilingual subtitles for any YouTube video

Browser translation, dictionary, and AI writing assistant
Browser translation, dictionary, and AI writing assistant
Bilingual subtitles and translated pages wherever you read or watch
Bilingual subtitles and translated pages wherever you read or watch
Learn a language from the videos you already watch
Learn a language from the videos you already watch
Reader mode, text-to-speech and AI summaries for any web page
Reader mode, text-to-speech and AI summaries for any web page
AI language learning built into every page you read
AI language learning built into every page you read