Built by grapplers who kept forgetting Tuesday's class

BJJ Learner started the way most training journals do: a notes app full of half-sentences like “knee cut — elbow??” written in the car after class, never read again.

Jiu-jitsu is the most detail-dense sport most of us will ever do, and almost all of us train it around jobs, kids and sleep. Two or three classes a week is plenty to get good — if nothing leaks between sessions. The leak is the problem. You drill a beautiful pass on Tuesday, and by Thursday it's a rumor.

So we built the tool we wanted: a journal fast enough to actually use, a technique library organized the way the sport actually works — positions, connections, chains — and a game planner that's honest about the difference between watching a technique and hitting it on someone who's resisting.

No feeds. No ads. No gamified junk. Just the loop that makes hobbyists improve like competitors: log → study → focus → roll → repeat.