Rollbook vs SubMetrix

The simplest way to track your BJJ journey: from white belt to black. Rollbook is the training companion serious grapplers have been waiting for. Log sessions in seconds, build your technique journal, and track every gym you've trained at worldwide. ▸ QUICK SESSION LOGGING No more forgotten training days. Log your rolls with one tap—record duration, training type (gi or no-gi), intensity, and key takeaways. Your entire training history, searchable and organized. ▸ TECHNIQUE JOURNAL That sweep your professor showed? The detail that finally made your armbar click? Capture techniques with notes, tags, and position categories. Never lose another insight from the mat. ▸ GYM PASSPORT Training while traveling? Visiting open mats? Track every academy you've trained at worldwide. Build your grappling passport and see your BJJ journey mapped across the globe. ▸ BELT PROGRESSION TIMELINE Document every stripe and promotion. See your progression visualized—from your first class to your next belt. Set goals and track the hours that matter. ▸ TRAINING STATS & INSIGHTS Weekly, monthly, and yearly breakdowns. Training frequency, favorite gyms, most-practiced techniques. Data that helps you train smarter. Whether you're a fresh white belt or a seasoned competitor, Rollbook keeps your entire jiu jitsu journey in one place—clean, fast, and reliable. Download free and start logging your first session today. Terms of Service: https://rollbook.app/terms/ Privacy Policy: https://rollbook.app/privacy/

SubMetrix is the advanced Jiu-Jitsu tracker built for serious grapplers and academies. Turn every roll into data, find your weak spots, and watch your game evolve. TRACK EVERY ROLL Log sessions in seconds — Gi or No-Gi, rounds, intensity, duration, and partners. Build a complete history of your mat time and training volume. COMBAT INTELLIGENCE Record every submission you land and every tap you give up. SubMetrix turns it into a clear picture of your game: your Lethal Weapon (your highest-percentage finish), your Critical Weakness (what keeps catching you), and your Nemesis (the positions costing you rounds). KNOW YOUR NUMBERS Clean dashboards break down your submissions, positions, takedowns, and progress over time — so you stop guessing and start training with intent. FLOW MAPS & GAMEPLANS Chain your techniques into flows and build tournament-ready gameplans. See exactly how your A-game connects from takedown to finish. MENTAL RECALL Sharpen your knowledge with BJJ flashcards and terminology quizzes spanning positions, submissions, and concepts from white belt to black. — SUBMETRIX PRO — Unlock the full arsenal: • AI Companion — your personal on-device BJJ coach. Ask how to hit or escape any technique and get step-by-step breakdowns, plus advice personalized to your own logged training. It even remembers your session notes. Works offline, right on the mats. • Performance Analytics — deep dives into your trends and tendencies. • Tournament Gameplan builder. • Training Journal & Breath Trainer. • Export your full training data anytime. Whether you're a hobbyist chasing your next stripe or a competitor prepping for the podium, SubMetrix helps you train smarter and evolve faster. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/