Yoki
pricing
climbers
log instart climbing, free
a coach, not a course

the mountain doesn't care if you watched the video.

it cares if you can do the thing.

tell me what you want to become. I find where you are, name exactly why you're stuck, and hand you the one thing to try next. until you can actually do it.

start climbinghow it works

no credit card. no trial period. no catch.

oh. a new one.
Yoki planting a flag at the summit
climber #10. no pressure.
Yokibefore I sell you anything, try this.
a bathtub holds 180 L. the tap adds 12 L/min, the drain takes 8. how long until it overflows, and what did you assume without noticing?

open it, and three things are always true.

not a menu of features. the only three questions that matter, answered every time you show up.

the mountain
where you're going

a real summit you can stand on, not a syllabus. plus an honest read on how far up you are.

the compass
what you can do right now

every concept in plain words. can you recall it, apply it, use it somewhere new, teach it.

the next step
what to try now, and why

one thing. the reason you keep slipping, named out loud. no menu to wade through.

and the deepest rung: explain it back to me. I play the confused beginner and push until it clicks. if you can teach it, you own it.

two ways up. both of them yours.

click one. I switch between them when I see you need it. you can too.

the next step, a guided climb

the next step is what I lay out after watching you try. not a syllabus. if you already know it, we skip it. it reshapes as you climb.

see the next stepin full →
four weeks into calculus, this is where you stand.
chain ruleimplicit diff. ← youoptimization
today I hand you a problem, not a lecture.
x² + y² = 25. find dy/dx at (3,4), without solving for y.
"you already know the chain rule, so we skip it. last time you solved for y, the long way. try again."

this is not a progress bar.

progress bars lie. 73% done means you watched 73% of the videos. it doesn't mean you can do 73% of the things. the compass is a map of what you actually know, and the gaps between, which are usually more interesting than the peaks.

in the good inkreliable, under pressure, in multiple contexts.
on the trailshown once. hasn't held up yet.
fading inkyou knew it once. the mountain is forgetting.
unmappednot been here yet. no judgement.

the mountain keeps a record.

not a notifications tab. an old explorer's journal. your wins go down in the good ink. so do the days you ghost. nobody else does this.

Yokiit remembers
good inkday 31. you got through the song-writers on a quiet tuesday. that counts.
the gapthree days away. the chain rule started to fade. we caught it.
the rivalattention mechanisms held the ridge. you fell back. noted for next time.

the mountain is free. it always was.

study any course without limits on the free tier. pro is 7.99/mo, expedition 4.99/seat. actual prices, no toggle tricks.

free · 0 EURpro · 7.99expedition · 4.99
see the full pricing →
read before you climb

you might not like it here.

no streaks. no badges. I'll make you try things before you feel ready, and the map I keep is honest. some climbers hate that. find out now, not after you've imported your notes.

read the whole warning →

bring me something to learn.

a syllabus, a PDF, a link, one stubborn idea. I'll find where you are and lay out your next steps.

start climbing

the mountain is waiting.

Yoki

learning by doing. not by watching. climber #10 on the mountain. signed, Yoki.

the mountainhow it worksthe next stepthe wandertalk to yoki
the lorethe handbookyou might not like it herethe dispatch
the climbersclimber storiesthe roadmapclimb with us
copyright 2026 Yoki. learning by doing.
privacytermspricing