Understand
first.
KemaFox uses AI to turn real-world speech into study material your ear can follow. The subtitle waits -- your ear leads, and the words come free. In any language.
日本語 first. More languages on the way.
You can read the words.
You still freeze when you hear them.
Reading buys you time. Real speech does not. The gap is not vocabulary -- it is that your ear was never trained on the real thing.
Three moves. One skill.
AI does the hard part
KemaFox processes real learning content with AI into word-aligned, listenable material -- every word tied to its moment in the audio.
The subtitle waits
Text is delayed on purpose. You listen first, guess with your ear, then let the words confirm what you caught.
Meaning clicks
A native-level translation is one tap away -- for the moment understanding lands, never before.
Every word, tied to the sound.
Word-level alignment, readings, and a translation held back until you ask. No flashcards, no drills -- just real voices you learn to follow.
You acquire a language by understanding messages -- not by memorizing them.
Comprehensible input: feed your ear real speech it can almost follow, and understanding grows on its own. Speech follows. KemaFox exists to make real input comprehensible -- one lesson at a time.
Minimal
Real speech in, understanding out. Nothing between you and the sound.
Useful
Real voices, word-level alignment, AI-processed. Not busywork.
Reliable
Every word tied to its moment in the audio. Trust what you hear.
Pay for what you learn.
Credit-based and simple. One credit is one minute of lesson. Every new account starts with 15 free credits -- no card required.
Advanced
360 credits every month
For serious immersion, more input every day.
Start freePrices in USD. Subscriptions renew monthly and can be cancelled any time. See our Refund and Cancellation Policy.