The Best BJJ Training Log Apps in 2026 — In-Depth Comparison

Brazilian Jiu-Jitsu is notoriously hard to measure. You show up, you roll, you get tapped, you tap others — but is your game actually improving? Three months can pass without a clear answer.

The right training log changes that. It turns the fog of daily rolling into a map of your progress. But with half a dozen BJJ-specific apps now on the market, choosing the right one is its own kind of puzzle.

We tested the leading contenders — JitsLab, Grappling AI, BJJ Notes, and MatTime — across the metrics that actually matter for long-term improvement. We've since added three more names that keep coming up in the same conversations: Marune, FlowRoll, and BJJBuddy, assessed from their current App Store and Google Play listings.

TL;DR: JitsLab is the strongest all-round choice if you want a training log that also helps you retain what you learn — a structured technique taxonomy, spaced-repetition review, and an AI coach grounded in your own logged sessions. Grappling AI is the best pick if you want voice-first journaling and you're on iOS. BJJ Notes is a clean, familiar digital notebook with no AI, and MatTime is the cheapest way in for beginners who want gamification rather than depth. Of the three we added, Marune is the pick for cross-training across martial arts, FlowRoll for logging roll by roll, and BJJBuddy for submission stats. No other app on this list combines taxonomy, review scheduling and AI analysis in one place.

Best for: Practitioners who want deep analytics, AI coaching, and retention science built into their training log.

JitsLab is the only app on this list that wasn't built by a VC-funded startup. It began as a practitioner's side project and grew into a full-featured training ecosystem — the core app is free to use.

What sets it apart:

• AI Coach (BYOK or Pro): Bring your own API key or subscribe to Pro. The coach understands BJJ context — it doesn't just regurgitate generic fitness advice. It reads your logged sessions, technique tags, and rolling partners, then generates personalised feedback.

• BJJ Taxonomy Engine: 690+ classified concepts covering positions, guards, passes, sweeps, submissions, and escapes — all tagged with type, parent relationships, and cross-references. When you log "armbar from mount," the taxonomy links it to mount retention, armbar entries, and submission chains. It grows every time a practitioner adds a technique the tree is missing.

• Health Connect Integration: Syncs your training sessions directly to Google Health Connect. Your BJJ workouts appear in your health dashboard alongside runs and gym sessions — no manual double-entry.

• Spaced Repetition (SM-2) Review: Built-in cloze-deletion review sessions that resurface technique notes at optimal intervals. The only app on this list that applies memory science to BJJ retention.

• 100+ Video Library: Curated technique videos, each tagged into the taxonomy, searchable by position, type, and difficulty.

Pricing: Free tier (unlimited session logging, basic stats) · Pro at $9/mo (AI Coach, video library, health sync, advanced analytics) · BYOK option for AI Coach (pay only for your API usage).

Verdict: If you want more than a notebook — you want a system that helps you learn — JitsLab is the strongest choice. The combination of taxonomy depth, AI coaching, spaced repetition, and open-source transparency is unique in the space.

Best for: Practitioners who hate typing and want a quick post-roll reflection tool.

Grappling AI takes a voice-first approach: you talk after class, and their AI structures your notes into techniques, positions, and patterns. It's the most frictionless logging experience on the market — no forms, no tag selection, just a two-minute voice memo.

Strengths:

• Unlimited voice journaling is genuinely useful for capturing the feel of a roll while it's fresh
• AI extraction is reasonably accurate at pulling technique names from natural speech
• Beautiful iOS-native UI

Weaknesses:

• iOS-only — Android users are locked out entirely
• No video library, no health sync, no spaced repetition
• AI analysis is good but shallow compared to a taxonomy-grounded approach
• At $15/mo, it's the most expensive option
• Closed-source — your data lives on their servers with no export guarantee

Verdict: Excellent for the "record and forget" crowd. If journaling feels like homework, Grappling AI removes the friction. But the trade-off is depth — you're trading control for convenience.

Best for: Traditionalists who want a structured journaling experience.

BJJ Notes takes the old-school training journal and puts it on your phone. It gives you a clean interface for logging techniques, taking notes, and reviewing session history.

Strengths:

• Clean, familiar UI — doesn't try to be clever
• Cross-platform (Android + iOS)
• Session history is easy to browse

Weaknesses:

• No voice logging, no AI coach, no video library
• Taxonomy is curated and limited — you're confined to their technique tree
• No health integration
• $7/mo feels steep for what is essentially a structured text editor

Verdict: A solid option if all you want is a digital version of the paper notebook in your gym bag. But compared to what JitsLab and Grappling AI offer at similar or lower price points, the value equation is hard to justify.

Best for: Beginners who want motivation through gamification.

MatTime launched recently with a flashy UX and a lifetime $9.99 price point. It targets the white-to-blue belt journey with streaks, XP, and leaderboards.

Strengths:

• Lifetime pricing is genuinely competitive
• Social features (leaderboards, friend comparisons) work well for motivation
• Pleasant iOS design

Weaknesses:

• iOS-only launch (Android "coming soon")
• Generic feature set — no BJJ-specific taxonomy, no AI coaching, no video library
• Gamification can feel shallow after the novelty wears off
• As a new entrant, the feature roadmap is unproven

Verdict: A good entry-level app for white belts who need external motivation to stay consistent. But serious practitioners will outgrow it quickly.

Best for: Practitioners who cross-train more than one martial art.

Marune is the biggest name on this list that isn't BJJ-only. It's a multi-discipline training tracker covering BJJ alongside judo, boxing, wrestling and more, with belt progression, a calendar of trainings, a competition tracker, a personal technique library ("training wiki"), a social feed and statistics. It ships on both iOS and Android, integrates with Apple Health and Google Fit, and lists a large directory of BJJ schools.

Strengths:

• Genuine multi-sport support — one log for every art you train
• Apple Health and Google Fit sync, plus a built-in competition tracker
• Large community features: social feed and a schools directory
• Free to download

Weaknesses:

• Breadth over depth: technique tracking is a personal wiki, not a structured BJJ taxonomy
• AI coaching and diary features are newer and less documented than the logging core
• No spaced-repetition review, so logged techniques don't feed a retention loop

Verdict: The right choice if you train more than one discipline and want one home for all of it. If BJJ is your only art and you care about structured progress, a BJJ-specific log fits better.

Best for: Detailed post-roll breakdowns with partners and techniques.

FlowRoll (FlowRoll — BJJ Training Pal) is a BJJ-only logger on iOS and Android, focused on roll-level detail: record each roll with its techniques, submissions, training partners and notes, keep a technique library organised by category, and review analytics on your game. It runs gi and no-gi sessions and is free to download.

Strengths:

• Roll-by-roll granularity: partners, submissions and notes per roll
• Technique library organised by category, with analytics over time
• Both platforms, free to download

Weaknesses:

• No AI coaching advertised — analytics are historical, not advisory
• No spaced-repetition review or health sync
• No web/PWA version

Verdict: A strong fit if your core need is granular roll tracking and you're happy to draw your own conclusions from the stats.

Best for: Simple, charted stats on your rolls with minimal setup.

BJJBuddy has been on the market longer than most of this list (it's been on the App Store since the early iOS days) and stays focused: log rolls, count submissions, taps and sweeps, and see charts of how you're doing. It runs on iOS and Android and is free to download.

Strengths:

• Fast, uncomplicated logging with submission and sweep charts
• Both platforms, long track record, free to download

Weaknesses:

• Feature set is statistics-first — no AI coach, no video, no health sync
• Interface and design language feel dated compared with newer entrants
• No structured taxonomy or spaced-repetition review

Verdict: A dependable lightweight option for tracking submissions over time without adopting a full training system.

The BJJ AI coach space is still young, and the quality gap between apps is wide.

• JitsLab grounds its AI coach in your actual logged data — session frequency, technique selection, partner belt levels, training duration. The coach knows that if you've logged 12 straight sessions of closed guard work without attempting a sweep, it's time to suggest guard retention drills.

• Grappling AI generates insights from voice memos, which captures the qualitative side ("I felt slow tonight") but lacks the quantitative precision of structured data.

• BJJ Notes and MatTime offer basic or no AI analysis.

• JitsLab (690+ concepts) — hierarchical taxonomy with parent-child relationships, position types, and user-defined technique tags. Maintained and expanded regularly.

• Grappling AI — dynamic taxonomy extracted from voice, which is flexible but inconsistent.

• BJJ Notes — fixed curated tree of ~300 concepts. If your gym uses different terminology, you're out of luck.

• MatTime — generic tagging only.

Choose JitsLab if: You want the deepest feature set at the best price. You care about technique taxonomy, AI coaching that actually knows BJJ, health integration, and spaced repetition. You value open-source transparency.

Choose Grappling AI if: You hate logging sessions and want the fastest possible post-roll reflection. You're on iOS and willing to pay $15/mo for convenience over depth.

Choose BJJ Notes if: You just want a clean digital notebook and don't need AI, video libraries, or health sync. The $7/mo is reasonable if you don't compare it to what else is available.

Choose MatTime if: You're a white belt who needs gamification to stay consistent and you're on iOS. The $9.99 lifetime deal is hard to beat for basic tracking.

Choose Marune if: You cross-train more than one martial art and want one log for all of it, with community features on top.

Choose FlowRoll if: You care most about roll-by-roll detail — partners, submissions and notes per roll — and want it on both platforms for free.

Choose BJJBuddy if: You want fast, charted submission stats with minimal setup and no learning curve.

It depends on what you want the log to do. If you want retention — taxonomy tagging, spaced-repetition review and an AI coach that reads your own sessions — JitsLab is the strongest all-round choice and the core app is free. If you want the fastest possible post-roll reflection and you're on iOS, Grappling AI. If you want a plain digital notebook, BJJ Notes.

Yes. JitsLab's core — session logging, goals, gameplans, technique taxonomy and review — is free, with no credit card required. AI coaching works two ways: bring your own OpenAI, Anthropic or OpenRouter key, or subscribe to the Pro tier for hosted coaching, the video library and health sync.

JitsLab, BJJ Notes, Marune, FlowRoll and BJJBuddy all run on Android — JitsLab as a progressive web app and an Android app, the rest as native apps. Grappling AI and MatTime are iOS-only at the time of writing, which rules them out entirely if you train with an Android phone.

Not with JitsLab — the BYOK option lets you connect your own API key and pay the model provider directly, which is usually cheaper than a subscription if you already have a key. Grappling AI and BJJ Notes bundle their AI into the monthly price.

JitsLab is open source and built on a self-hostable stack, so your sessions and notes stay yours. The proprietary apps on this list don't publish an export path, which is worth weighing if you have years of logged training to protect.

A note on methodology: JitsLab, Grappling AI, BJJ Notes and MatTime were each tested for two weeks minimum, logging at least 10 sessions per app. Marune, FlowRoll and BJJBuddy are assessed from their current public store listings and published feature documentation rather than hands-on testing, and we flag them as such throughout. Feature counts for JitsLab are read from our own product database, not estimated. Feature comparisons are current as of September 2026. Pricing is checked at publication date and may change. JitsLab is our own product — this review applies the same standard to JitsLab as to competitors, and we note where competitors excel.

Related: Why logging your rolls makes you better — the note-taking half of the system, and what to write down so there's something worth reviewing. How to remember BJJ techniques — the five-minute post-class routine that makes any training log work.

Ready to train smarter?