Sensim — Learn 100 Languages While You Browse

About

Sensim replaces English words on every page you browse with their equivalent 
in your chosen language — but only words you've already proven you know.

HOW IT WORKS

Every day, 3 new words unlock in your flashcard deck. Review them in under 
2 minutes. Get a word right 3 out of 4 days and it graduates to your browser. 
From that point on, every time that word appears on a page you visit, you see 
it in your target language instead of English. No drilling. No lessons. Just 
your normal browsing, gradually becoming immersion.

If you keep hovering a graduated word to check its meaning, Sensim notices — 
and sends it back to your deck automatically. Words only stay in your browser 
when you've genuinely absorbed them.

THE 1,000-DAY JOURNEY

3 words per day. 1,000 days. 3,000 words. That's upper-intermediate vocabulary 
in any language — enough to read a newspaper, follow a conversation, understand 
a film. Built invisibly, one browsing session at a time.

100 LANGUAGES

Spanish · French · German · Japanese · Korean · Mandarin · Arabic · Hindi · 
Russian · Portuguese · Italian · Turkish · Persian · Swahili · Vietnamese · 
Thai · Indonesian · Polish · Dutch · Swedish · Norwegian · Danish · Finnish · 
Hungarian · Romanian · Czech · Greek · Hebrew · Bengali · Punjabi · Urdu · 
Tagalog · Malay · Tamil · Georgian · Armenian · Mongolian · Kazakh · Tibetan · 
Burmese · Khmer · and 59 more — including Cherokee, Nahuatl, Hawaiian, Welsh, 
Irish, Lakota, Ojibwe, Quechua, Aymara, and other indigenous and endangered 
languages treated with the same care as the rest.

PRIVACY FIRST

All progress is stored locally in your browser. No account required. No data 
sold or shared. No ads. Ever.

Sensim is not a language app. It's a layer on top of the life you already live.