Know Your Real Burn
Live HR via BLE, BJJ-focused calorie estimation, and session logging with photos.
App for Brazilian Jiu‑Jitsu
Every roll counts.
Now you can prove it.
The only app that tracks calories the way you actually train — on the mats, not on a treadmill.
- Real-time heart rate
- Belt milestones
- Readiness guidance
- Monthly goals + calendar
- Home screen widgets
- Apple Health sync
Built for how you actually train
Your Training, Everywhere
Save workouts directly to Apple Health with heart rate and active energy data.
Your Path to Black Belt
Track promotions and stripes with timeline milestones and profile sync.
Tag Every Technique
Label sessions by technique — guard passing, sweeps, submissions — and see which positions dominate your game.
Ready to Roll?
Fight readiness and recovery guidance with automatic "OSS!" unlock messages when you hit milestones.
See What Others Miss
Consistency insights, advanced technique analysis, confidence scoring, and CSV/PDF export.
Stay on the Mat
Set a monthly mat goal (sessions per month), see your progress on the calendar, and share a mat-days card.
One Glance, Zero Excuses
Track your monthly mat days right from your home screen with a progress ring or mini calendar widget.
From the mats
"My athletes used to train blind — no data, just feel. Now I can see who's overtraining, who's ready to compete, and who needs to dial back. It changed how I program their weeks."
"One of my athletes cut 4kg for a competition while keeping his energy on the mats. That only happened because we had real calorie data from actual rolls, not guesswork from a running app."
"I stopped guessing and started seeing. My journey on a timeline, my calories per roll, my consistency month after month — it's the first app that actually feels made for someone who trains."
"I train three times a week and I'm not competing any time soon — but seeing my mat streak grow and my calories tracked session after session keeps me showing up. That accountability hit different."
Built for the mats
Dark, focused interface designed for quick logging and real training flow.
Free or Premium?
Yes, the app is genuinely free — track every session, every belt, forever. Premium is for anyone who wants to dig deeper into their data.
Free
Everything you need to log and train.
- Unlimited workout logging — heart rate, calories, photos, notes
- Last 30 sessions on the calendar with core stats
- Monthly mat goal with calendar progress
- One belt milestone on your timeline
- Works fully offline — no account, no internet required
Premium
For athletes who track everything.
Everything in Free, plus:
- Full session history — no 30-session limit
- Insights: technique mix, consistency, month-over-month
- Unlimited belt milestones with auto stats between promotions
- CSV / PDF export with date filters
- Cloud backup & sync across devices
- Watermark-free shareable cards
Compatible devices
Live heart rate tracking uses the standard Bluetooth Heart Rate Service (BLE 180D). We recommend BLE armbands — they stay secure during rolls.
Armbands
Coospo HW9, Polar OH1/OH1+, Scosche Rhythm24, and similar BLE armbands.
ANT+ bands require an external adapter; not natively supported on phones.
Frequently asked questions
Is the app really free?
Yes. Track every session, log your journey, set monthly goals, use home screen widgets, and share progress cards — all free, forever. No account required, no ads. Premium is an optional upgrade for deeper insights, full history, and cloud backup.
Does it work without internet?
Completely. The Guard BJJ works fully offline — log workouts, track heart rate, and view your stats without any connection. Your data lives on your device. If you upgrade to Premium, cloud backup syncs when you're back online.
Is my training data private?
Yes. Your data stays on your device by default. We don't sell or share your information. If you enable Premium cloud backup, data is encrypted in transit and at rest. Read our privacy policy for details.
Does it work for no-gi and MMA?
Absolutely. Heart rate, calories, and session logging work the same for gi, no-gi, or MMA. The journey feature is BJJ-specific, but everything else applies to any grappler.
Do I need a heart rate band to use the app?
Nope. You can log sessions, track your journey, set monthly goals, use home screen widgets, and share progress cards — all without a band. The app works great on its own.
What do I get with a heart rate band?
That's where the real magic happens. With a BLE heart rate band you get live heart rate tracking during rolls, BJJ-specific calorie estimation based on your actual effort, recovery and readiness guidance, and richer data synced to Apple Health. Without a band, calories are a rough estimate — with one, they're based on your real intensity on the mats.
Which heart rate band do you recommend for BJJ?
- Chest straps can lose contact or shift during heavy pressure positions like side control (100kg).
- Wrist bands and smartwatches tend to slip off during gi training because of sleeve grips.
- Forearm bands stay secure — they sit above the wrist (away from grips) and below the chest (away from pressure). Best of both worlds for grappling. We recommend optical bands like the Coospo HW9.
When is Android coming out?
Android is currently in closed beta. We're actively testing with a small group before the public launch. Want to help? Tap "Become a tester" in the download section to join.
Download now
The Guard BJJ is free on the App Store. Premium insights available with an optional subscription.
Android is in closed beta — looking for testers to help unlock the public release.
Questions? Reach out at ✉️ hello@theguardbjj.app
Instagram:
@theguardbjj.app