The BJJ training journal that writes itself.

Talk before and after class with Linear's BJJ-trained Voice AI. It understands positions, techniques, and patterns, then turns your recaps into a personalized gameplan to get you better at jiu jitsu 10x faster than your peers.

Download on theApp Store Get it onGoogle Play

9:41100%

Linear BJJ Journal

captures the pattern

Professor asked what we did last class and everyone stared into space. I think it was knee cuts?

Thread saved: knee cut entries. Went well: first step. Leak: underhook recovery. Next: near-side elbow before the pass stalls.

Save to journal

Build a drill plan

Log by voice

9:41100%

Athlete scorecard

updated this week

+12%

Top game84%

Escapes76%

Takedowns63%

Focus this week

Half guard framesSit-up sweepCrossface wins

The app habit

Talk after class. Review before class.

The phone is the main event because the moment is mobile. Linear BJJ fits the conversation you already have after training, then turns it into a clear focus before the next session.

Download on theApp Store Get it onGoogle Play

Step 01

Talk right after class

Say what happened while the details are still warm: what worked, what failed, and what felt confusing.

Step 02

Keep the thread

Linear BJJ turns the recap into concepts, weak spots, strengths, and study prompts you can revisit.

Step 03

Bring it back next time

Before class, review one focus so your next round starts from the last lesson instead of a blank page.

The familiar problem

You leave class and the details evaporate.

Then next class starts, your professor asks what you worked on, and everyone has the same blank look. The funny part is also the expensive part: hard training is not compounding.

Built for the post-class ritual

Most athletes already talk about rounds after class. Linear BJJ gives that natural habit a simple improvement framework.

Made for the blank-stare moment

Use it before the next class starts and your professor asks what you worked on last time.

Small enough to keep using

Five minutes after class. Five minutes before class. Enough structure to think better, without adding homework.

Inside the app

Five minutes that make training compound.

Linear BJJ's Voice AI guides a simple framework built with top black belts: what went well, what didn't, and what to work on next.

After class

Catch the walk-out recap

Talk through class before it becomes 'knee slice... maybe?' and save the details while they still make sense.

Preview01

Tonight's class

Went well: knee cut entries. Did not: underhook recovery. Next: near-side elbow before the pass stalls.

Journal entry generated and saved.

Voice AI recap

What went well

What to work on

Get the app

Study path

Turn reflection into direction

A five-minute recap becomes a thread of concepts, weak spots, and next-class prompts you can actually follow.

Preview02

What should I study?

Your thread is underhook recovery from knee cut defense. Watch one clip, drill the elbow position, then test it next class.

Uses your historyUpdates over time

Concept tracking

Focused themes

Next-class prompts

Get the app

Plug holes

Know what to study off the mat

When you can name the problem in your game, it becomes much easier to find the right video, instructional, or drill.

Preview03

Passing88%

Bottom game74%

Standup61%

Pattern spotting

Study prompts

Focused next steps

Get the app

Build your system

Develop a game, not a pile of notes

Your strengths, weaknesses, and favorite ideas start connecting into a game you can double down on.

Preview04

Guard pull

Shin-to-shin

Sit-up sweep

Game mapping

Decision trees

Linear progression

Get the app

How it works

Five minutes after. Five minutes before.

After class, talk through what happened. Before class, review one thing to test. That tiny loop makes off-mat critical thinking part of your training.

Get the app

Talk through class

Answer the simple framework: one thing that went well, one thing that did not, one thing to work on next.

Name the pattern

Linear BJJ organizes the recap into concepts, weak spots, strengths, and a thread you can study.

Bring one thing back

Before the next class, review one focus so your training builds instead of resetting every time.

Made for your phone

The app is built for the moment you actually need it.

You do not need another thing to manage when you get home. Open your phone after class, talk through the session, and come back next time with one clear focus.

Get the app See the habit

Built for the parking-lot recap

The useful moment is right after training, while you still remember what actually happened.

Small enough to repeat

The loop is intentionally tiny: five minutes to recap, five minutes to return to your focus.

Designed for carryover

Every recap gives you a cleaner picture of what to study, test, and double down on.

What changes

Thinking off the mat changes how you train.

Without a system

Hard training, accidental carryover.

You train hard, then start the next class from a blank page.

Your professor asks what you worked on last time and the room goes silent.

You watch random technique videos without knowing which hole you are plugging.

Your game grows by accident instead of by a clear thread.

With Linear BJJ

One thread to study, test, and build.

You can name the concept you are building.

Weak spots turn into study prompts instead of vague frustration.

Strengths become threads you can double down on.

Five minutes before and after class gives the next round a purpose.

Start tonight

Get more from the training you already do.

Talk through tonight's class in five minutes, then show up next time with one clear thing to test.

Download on theApp Store Get it onGoogle Play

Get the app View mobile plans

The BJJ training journal that writes itself.

Download on theApp Store Get it onGoogle Play

9:41100%

Linear BJJ Journal

captures the pattern

Professor asked what we did last class and everyone stared into space. I think it was knee cuts?

Thread saved: knee cut entries. Went well: first step. Leak: underhook recovery. Next: near-side elbow before the pass stalls.

Save to journal

Build a drill plan

Log by voice

9:41100%

Athlete scorecard

updated this week

+12%

Top game84%

Escapes76%

Takedowns63%

Focus this week

Half guard framesSit-up sweepCrossface wins

The app habit

Talk after class. Review before class.

The phone is the main event because the moment is mobile. Linear BJJ fits the conversation you already have after training, then turns it into a clear focus before the next session.

Download on theApp Store Get it onGoogle Play

Step 01

Talk right after class

Say what happened while the details are still warm: what worked, what failed, and what felt confusing.

Step 02

Keep the thread

Linear BJJ turns the recap into concepts, weak spots, strengths, and study prompts you can revisit.

Step 03

Bring it back next time

Before class, review one focus so your next round starts from the last lesson instead of a blank page.

The familiar problem

You leave class and the details evaporate.

Then next class starts, your professor asks what you worked on, and everyone has the same blank look. The funny part is also the expensive part: hard training is not compounding.

Built for the post-class ritual

Most athletes already talk about rounds after class. Linear BJJ gives that natural habit a simple improvement framework.

Made for the blank-stare moment

Use it before the next class starts and your professor asks what you worked on last time.

Small enough to keep using

Five minutes after class. Five minutes before class. Enough structure to think better, without adding homework.

Inside the app

Five minutes that make training compound.

Linear BJJ's Voice AI guides a simple framework built with top black belts: what went well, what didn't, and what to work on next.

After class

Catch the walk-out recap

Talk through class before it becomes 'knee slice... maybe?' and save the details while they still make sense.

Preview01

Tonight's class

Went well: knee cut entries. Did not: underhook recovery. Next: near-side elbow before the pass stalls.

Journal entry generated and saved.

Voice AI recap

What went well

What to work on

Get the app

Study path

Turn reflection into direction

A five-minute recap becomes a thread of concepts, weak spots, and next-class prompts you can actually follow.

Preview02

What should I study?

Your thread is underhook recovery from knee cut defense. Watch one clip, drill the elbow position, then test it next class.

Uses your historyUpdates over time

Concept tracking

Focused themes

Next-class prompts

Get the app

Plug holes

Know what to study off the mat

When you can name the problem in your game, it becomes much easier to find the right video, instructional, or drill.

Preview03

Passing88%

Bottom game74%

Standup61%

Pattern spotting

Study prompts

Focused next steps

Get the app

Build your system

Develop a game, not a pile of notes

Your strengths, weaknesses, and favorite ideas start connecting into a game you can double down on.

Preview04

Guard pull

Shin-to-shin

Sit-up sweep

Game mapping

Decision trees

Linear progression

Get the app

How it works

Five minutes after. Five minutes before.

After class, talk through what happened. Before class, review one thing to test. That tiny loop makes off-mat critical thinking part of your training.

Get the app

Talk through class

Answer the simple framework: one thing that went well, one thing that did not, one thing to work on next.

Name the pattern

Linear BJJ organizes the recap into concepts, weak spots, strengths, and a thread you can study.

Bring one thing back

Before the next class, review one focus so your training builds instead of resetting every time.

Made for your phone

The app is built for the moment you actually need it.

You do not need another thing to manage when you get home. Open your phone after class, talk through the session, and come back next time with one clear focus.

Get the app See the habit

Built for the parking-lot recap

The useful moment is right after training, while you still remember what actually happened.

Small enough to repeat

The loop is intentionally tiny: five minutes to recap, five minutes to return to your focus.

Designed for carryover

Every recap gives you a cleaner picture of what to study, test, and double down on.

What changes

Thinking off the mat changes how you train.

Without a system

Hard training, accidental carryover.

You train hard, then start the next class from a blank page.

Your professor asks what you worked on last time and the room goes silent.

You watch random technique videos without knowing which hole you are plugging.

Your game grows by accident instead of by a clear thread.

With Linear BJJ

One thread to study, test, and build.

You can name the concept you are building.

Weak spots turn into study prompts instead of vague frustration.

Strengths become threads you can double down on.

Five minutes before and after class gives the next round a purpose.

Start tonight

Get more from the training you already do.

Talk through tonight's class in five minutes, then show up next time with one clear thing to test.

Download on theApp Store Get it onGoogle Play

Get the app View mobile plans