AI BJJ Coach
DARCE is an AI app to analyze sparring video, and in BJJ that means your rolls. Upload one from your phone and the AI reads it position by position, from guard pulls and passes to submissions, then gives you a coach’s breakdown and the one position to drill next.
From rolling footage to your next position.
- 01
Film
Record a roll on your phone, or pick sparring footage already on it. One video upload of live rolling from a single fixed angle is enough: no rig, no markers, no sensors.
Roll 03 · 02:00 · single angle
- 02
Analyze
DARCE reads the roll position by position: guard pulls, passes, sweeps, back takes and submissions.
47 exchanges · 12 positions read
- 03
Breakdown
See exactly where you lost position and why: the frame you missed, the grip you gave up, the sweep you almost finished.
Weakest: half-guard bottom
- 04
Drill
It hands you the one position to fix next, tied to the moment you lost it, before the next open mat.
Drill next: guard frames
Built like a coach, not a replay.
- Technique library
- 39 BJJ techniques mapped step by step, from fundamental escapes to leg locks, inside a library of 90+.
- Weakness detection
- Find the position quietly costing you taps before your training partners do.
- Personalized drills
- Fixes from how you actually roll, each tied to the moment it happened, not a generic curriculum.
- Progress tracking
- Watch your guard retention and finish rate climb with every roll you analyse.
- Cross-training ready
- The same system reads wrestling, boxing, MMA and BJJ, so it keeps up if you cross-train.
- In your pocket
- The film review most hobbyists never get, on your phone.
Explore the BJJ technique library
Every breakdown links into a library of named techniques, each mapped step by step.
Key facts about DARCE
- DARCE analyses a filmed round of live sparring, read position by position across the whole round, in BJJ, wrestling, striking and MMA, and the same four analyses read sparring in Muay Thai, kickboxing, judo, sambo, no-gi grappling and other martial arts.
- The analysis is not limited to a technique list: it names what happens in the round from a vocabulary of 260+ positions, moves and finishes across the four martial arts, while the 90+ technique library is a separate step-by-step reference you can read free on darce.app.
- A DARCE breakdown has four parts: a round summary of who controlled the round and where it turned, a position timeline mapped to the second, the key moments that decided it, and up to 3 fixes, each tied to the moment it happened with one line on why.
- A breakdown is usually ready one to two minutes after the upload finishes.
- Film on your phone from a single fixed angle, in landscape, at about chest height for stand-up and higher, angled down, for rolling; no rig, sensors or markers are needed, and a round of up to 2 minutes can be analysed.
- DARCE is a mobile app for iOS and Android with no web or desktop version; it is in private beta, onboarding the first 50 founding testers from the waitlist at darce.app/join, and is not yet publicly downloadable.
- DARCE is free for founding testers during the beta, and pricing after the beta has not been announced.
Questions before you start.
Can an AI really coach BJJ?
It does not replace your coach or your professor. What it gives you is the film review most hobbyists never get: a clear read on every roll and one position to work on, so your mat time goes further.
What footage do I need?
Just your phone. A single fixed angle of a live roll is enough. No rig, no sensors, no markers.
When can I use it?
DARCE is in private beta and we are onboarding 50 founding testers first. Join the waitlist and you will get the launch email the moment it opens.
What does it cost?
Founding testers get free access through the beta. Pricing comes later, and early testers will have a say in it.