Decisions win rolls.
The BJJ app for white and blue belts. Pick your move from guard, mount and side control.
5.0 on the App Store · Five minutes a day · Free to start
The BJJ app for white and blue belts. Pick your move from guard, mount and side control.
5.0 on the App Store · Five minutes a day · Free to start
Most of the mat is white belts, and a lot of them quit before blue. You learn a sweep on Tuesday, and by Thursday's roll it's gone.
Underhook teaches the fundamentals as decisions and makes them stick, so you stop freezing on the mat.
Guard, mount and side control, the way they happen in a roll.
Four moves, one that works, and the why right after.
Active recall and spaced repetition, right before you'd forget the spot.
No two‑hour instructionals. No video at all.
Class is where you learn the move. This is where it sticks.
You still need mat time. This makes every class count.
Questions, gym chats and podcasts with the crew.
The formats you already scroll, built for BJJ: four languages, free, no ads.
Pick a spot, then the move you'd go for. Three real questions from the app.
During a scissor sweep, your opponent posts their hand on the mat to stop from being swept. What do you do?
That's three of 1,307. The rest are in the app: free, no ads, five minutes a day.
During a scissor sweep, your opponent posts their hand on the mat to stop from being swept. What do you do?
Keep pulling the sweep
Open guard and re‑guard
Transition to an omoplata on the posted arm
Go for a cross choke
The posted arm is perfectly positioned for an omoplata. Swinging your leg over the shoulder while they are posted converts the sweep attempt into a shoulder lock.
Before executing the upa escape, you must first:
Create frames and push them off
Trap their arm and leg on the same side
Sit up and grab their collar
Turn toward them
Trapping the arm and leg gives you the fulcrum to complete the bridge‑and‑roll.
What is the first step to begin escaping from side control?
Immediately bridge hard
Grab their leg
Turn away from them
Create frames with your arms against their neck and hip
Frames create space and stop your opponent from flattening you completely.
Finish in the top 10, train weeks in a row or take #1 at your gym, and the app makes you a card for your story.
#7
Harbor BJJ
5Harbor BJJ
Harbor BJJSparring turns your answers into a roll. Every right call wins position, the finish locks in, and your training partner taps.
Every white belt freezes in the same spots. The app turns each one into a decision you’ve already made.
61 topics like these, five boss fights, then the blue belt test.
Your coach ties the real belt. The app gets you ready for that day.
One gym. Every personality you’ve ever trained with. They host your lessons, argue in the gym chat and talk you through the podcasts.
I’m a ghost. You have no excuse.
Gi GhostShowed up in a black belt and never left.
Hand fight, then move, then shoot. In that order, every time.
CoachBlack belt. Runs the gym. Few words.
Make him commit. Then punish the commitment.
MarcoPurple belt. Assistant coach. In your corner.
If you ignore the post and keep cranking, you’re just doing yoga.
KatBlue belt. Keeps a notebook. Catch her.
Two legs are a wall. One leg is a door.
Old ChenBrown belt at 67. Says it once.
yo coach why we shrimping back and forth across the mat lol
RexWhite belt. Makes your mistakes first.
Run an academy? Switch Underhook on and every member gets the full app for 30 days.
Free to start. Five minutes a day, on iPhone and Android.
