Matsu: BJJ Athlete

Your whole BJJ game in one app — log sessions, map your A-game, make weight, track your belt. Ask the AI that knows your training. New: phone number sign-in.

Matsu is the training companion for BJJ and grappling athletes who take their game seriously. Log every session, map your techniques, make weight, track your belt and stay connected to your academy — with an AI assistant that actually knows your training.

LOG EVERY TRAINING SESSION • Keep a complete log of classes, drills, sparring and comp prep • See your whole training week at a glance • Works offline — log a session on the mats, sync later

MAP YOUR A-GAME • Build visual flowcharts of your technique trees — guard attacks, passing systems, escapes • Branch every position into your decisions and your opponent's reactions • Turn scattered notes into a gameplan you can actually drill

MAKE WEIGHT EVERY TIME • Set a target weight tied to your next competition • Log weigh-ins and watch the trend toward fight weight • Know exactly how much you have to go and how long you've got

FUEL YOUR COMPETITION CUT • Follow a structured diet plan with calories and macros • Set your own cut or follow the one your coach shares • Keep your active plan and past plans in one place

TRACK YOUR BELT JOURNEY • Your current belt and stripes, verified by your coach • Full promotion history from white belt to now • See how long you spent at every rank

CAPTURE EVERY BREAKTHROUGH • Take training notes and tag them by position, focus or feeling • Link a note to the exact session it came from • Never lose the detail that finally made a technique click

ASK AI THAT KNOWS YOUR GAME • Ask about your weight cut, schedule, diet, belt or orders — answered from your real data • Type, talk or send a photo • Log a session or take a note just by asking

GEAR UP IN ACADEMY MERCH • Browse your academy's official gear — gis, rashguards, tees and more • Order and pre-order right from the app • Track your orders

CONNECT WITH YOUR ACADEMY • Link to your coach to share your training and get assigned plans • See the schedule and stay part of the team • No coach on Matsu yet? Use it as your personal training journal

BUILT FOR ATHLETES • English and Russian • Light and dark mode • Offline-first: train anywhere, sync when you're back online • Sign in with email or phone number

Stop keeping your game in your head. Download Matsu and train with a plan.