KoboshiFor intermediate learners
Built for the B1–B2 vocabulary wall.
You know the grammar. You can read, slowly. But fast speech runs ahead of you, and when you speak, the word arrives two seconds late. One more beginner lesson will not fix that. A better memory system will.
Your recall, getting faster
Time to pull one word from memory, across three review sessions.
Same word. Faster every time. That speed is what speaking runs on.
Most of the words you need
are already in your head.
The rest, you add a little at a time.
No speaking partner? Train the half you can
A big part of fluency is recall speed. You can train that alone.
No one to practice with? A big part of speaking fluency is recall speed, and you can train it alone, a few minutes a day. Hard mode makes you produce the word from memory, not just recognize it. New words you still need, you add a handful at a time.
Hard mode
Produce the word from memory, not just recognize it. The same work speaking asks of you.
One system
Every language you are learning trains in the same place, on its own schedule.
A few a day
Add the new words you actually meet, a handful at a time. Small, steady, permanent.
Questions
Quick answers.
I'm past beginner. Is this for me?
Yes. It is built for exactly this stage.
Does it help speaking or just reading?
Both. Hard mode trains active recall, which speaking runs on.
Why not just study a B2 word list?
Generic lists are full of words you will never use. Your own gaps are the fastest path.
Where next
Using Duolingo? Good. Keep it.
Here is how Koboshi fits beside it, without replacing your daily habit.
The wall is made of recall speed. Train it.
Start free. A few minutes a day, and the word stops arriving late.
Free tier to start.