A
Alex
The encouraging one
Builds you up before naming the thing. Patient, warm, hard to disappoint.
"Good rep. Now let the back leg drive — same intent, more from the floor."
AN AI COACH FOR EVERY ATHLETE
Coaching
shouldn't be
a luxury.
Palaistra is an AI coach that learns your technique, builds you a personal plan, and stays in your pocket — to watch you train, review the tape, and answer your questions. Tennis and weightlifting today. More on the way.
Watches your form
Computer vision · 33 joints, 30 times a second
Plans your training
A personal plan, built on your technique
Trains with you
Live sessions · film review · chat anytime
AI VISION
Form · phase · fault — live
BIOMECHANICS
27 fault checkpoints · live
AI COACH
"Get the racket face closed earlier. Watch this one."
9:41
TRACKING · 30 FPS
FOREHAND · 14
JORDAN · your coach
SPEAKING
A great coach used to mean a club membership, a $200 lesson, or a parent who played in college. Palaistra is the coach the rest of us never got — patient, attentive, and always there. For every sport. For every athlete.
HOW IT WORKS
From sign-up to your first plan, in under ten minutes.
No setup wizards. No drills to memorize. Just tell us who you are, hit a few, and your coach takes it from there.
01
Tell us about you.
Your sport. Where you're at. What you're chasing. Pick a coach whose voice you like, and you're in.
- Tennis and weightlifting today. Pickleball and golf next.
- Skill levels from total beginner to tournament-level.
- Three coach personalities — switch any time.
9:41
YOUR SPORT
Where do you train?
Palaistra adapts the coach, the cues, and the plan to your sport.
TennisSELECTED
Weightlifting
PickleballSOON
GolfSOON
Continue
02
Train. Your coach watches.
Prop up your phone. Computer vision reads your body, your equipment, and the play in real time — and your coach speaks between reps or points only when there's something worth saying.
- 3D pose, equipment, ball, and court — tracked on-device, 30 frames a second.
- 27 biomechanical checkpoints per sport, scored every rep.
- The coach interrupts less than a good one does in person.
9:41
TRACKING
14 SWINGS
JORDAN
●
03
Get a plan built for you.
After your first session, your coach writes you a plan. Three focus areas, drills that target each one, and a way to measure whether they're working — across every session you ever do.
- Focus areas adapt as your technique changes.
- Drills tailored to your sport and skill level.
- Every cue you've heard is tracked — what's stuck, what's slipping.
9:41
Coach Jordan
Here's the work for this week. Three focus areas — start with the first.
FOCUS · PRIMARY
Close the racquet face earlier.
FOCUS · 02
Drive through the back leg.
FOCUS · 03
Quiet the head on contact.
Start Today's Drill
04
Review the tape. Ask anything.
Open the app anywhere — at the gym, on the couch, in the car. Pull up yesterday's session, slow it down, ask why your form felt off. Your coach answers.
- Slow-motion film review with a corrected-form overlay.
- Voice or text chat — the coach remembers every session.
- Drills and explainers for anything you don't get yet.
9:41
J
Coach Jordan
Watching with you
Why did the second forehand feel rushed?
You started the swing 0.1s before your shoulders finished turning. On the first one — the good one — your hips led by a clean beat.
Watch the replay — I marked both reps for you.
Ask Jordan anything…●
INSIDE THE APP
Four surfaces. One coach across all of them.
Onboarding, training, planning, and review — the same coach knows what you did yesterday and what to focus on today.
QUICK SCAN
Reading your form…
Quick Scan
Hit a few. Palaistra reads your technique and writes your starting plan.
9:41
Here's what I noticed.
PRIMARY FINDING
Your hips finish the rotation, but your hands start before they do. That's the rushed feeling on the second swing.
Form score76
Power71
Consistency68
Rotation42°
— Coach Jordan
Your Report
One clear finding. Real numbers. No homework you'd never do.
9:41
This week's work.
FOCUS · PRIMARY
Close the racquet face earlier.
FOCUS · 02
Drive through the back leg.
FOCUS · 03
Quiet the head on contact.
Today's Drill
The Plan
A focused, sport-aware program that adapts after every session.
9:41
J
Coach Jordan
Online
Why did the deadlift feel heavy today?
Your hips rose before your chest on rep 3 — that shifts the load onto your back. Try a 3-second pause at lockout next set.
Got it. Replay it for me?
Ask anything…●
Chat with Coach
A coach you can talk to between sessions — voice or text. They remember every rep.
THE LONG GAME
The coach gets sharper the more you play.
Most apps reset between sessions. Palaistra holds a structured plan, tracks which cues stuck and which slipped, and adapts what it focuses on next time you're in.
Some weeks the work compounds. Some weeks it slips. Either way, you see it. Your coach sees it. And the next session starts from there.
Hip rotation · forehand
+18%
Loading depth · squat
+11%
Recovery footwork
−4%
PICK YOUR COACH
Three coaches. Same standard.
Pick the voice you want to hear when you're tired, when you're working, when you're learning. Switch any time — your plan travels with you.
J
Jordan
The technician
Reads your form like a director reads a take. Says the one true thing, no cushion.
"Elbow collapsed at contact. Fix that and three other things fix themselves."
S
Sam
The hitting partner
High-energy. Catches what worked the second after it works. Trains with you, not at you.
"That's the one. Do ten more like that and we move on."
SPORTS
One coaching engine. Built for every sport.
Tennis and weightlifting at launch. The biomechanical engine, the voice, the memory — all shared. Every new sport extends the same coach you already know.
LIVE
Tennis
Forehand, backhand, serve, volley. 27 fault checkpoints. Coaching adapts from rec player to tournament-level.
LIVE
Weightlifting
Squat, deadlift, bench, press, clean. Form failures = injury risk. Real-time cues before the next rep.
NEXT
Pickleball
Same engine, different geometry. Next on the roadmap.
NEXT
Golf
The swing, takeaway, and impact. Coming after pickleball.
LAUNCH — JUNE 16
The doors open June 16.
Tennis and weightlifting at launch. Leave your email and we'll send you the App Store link the moment the coach is live.
Every account starts with a free taste — the coach watches you play and talks to you about it before you pay a cent.
LaunchJune16
Sports at launch2
Live coach tasteFree
Extra hardware0