ZenCub: BJJ & Jiu-Jitsu

ZenCub turns Jiu-Jitsu videos into structured technique breakdowns you can study, save, and return to.

Paste any YouTube, TikTok, or Instagram link of a BJJ instructional or competition clip. ZenCub watches the video, transcribes the audio, identifies the techniques being shown, and produces a step-by-step breakdown with timestamps you can tap to jump straight to the moment.

WHAT YOU GET FROM EVERY VIDEO • Technique overview — what's being taught and why it works • Numbered steps with timestamps and watch-from-here jump-ins • Common mistakes called out by name • "You'll have it when…" checkpoints • "If opponent…" branches for realistic responses • Position, belt level, ruleset, and starting situation

ORGANIZE YOUR GAME • Library — every technique you've imported, searchable by name, position, or instructor • Stacks — your own playlists. Build a closed-guard system, a half-guard answers folder, a competition game plan, or a drill-this-week list • Concepts — recurring ideas across techniques (frames, base, posture, hip movement) you can study on their own

TRAIN SMARTER • Tap any step to jump to that exact moment in the video • Save your own notes per technique • Share a technique with a training partner — they get a clean view without needing the app • Get notified when a friend joins via your referral link

BUILT FOR BJJ PRACTITIONERS Every breakdown is generated the way Jiu-Jitsu is actually coached: position-aware, ruleset-aware (Gi, No-Gi, MMA), and belt-level aware. Whether you're a white belt trying to escape side control or a brown belt drilling leg-lock entries, ZenCub gives you the language and structure the best instructors use.

HOW CREDITS WORK Every imported video uses 1 credit, regardless of how many techniques it contains. New accounts start with 5 free credits. US App Store accounts can buy more credits at zencub.com; international accounts earn additional credits by referring friends while in-app purchases roll out globally.

WHO IT'S FOR • White and blue belts who want a system, not just clips • Purple, brown, and black belts who want their library searchable • Coaches who want to send students a clean breakdown of yesterday's lesson • Anyone who has 200+ saved BJJ videos and never re-watches any of them

PRIVACY ZenCub doesn't track you across other apps. We only store the videos you choose to import, your technique notes, and basic profile info needed to sign you in. You can delete your account and all your data from Settings → Delete Account at any time.

QUESTIONS Email eric@zencub.com — we read every message.

Sign in with Apple, Google, or your email. iOS 17+. Free to download.