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AI technique feedback
Clear coaching tips tied to your actual movement — what to work on, why it matters, and what to try next. Not generic advice. Yours.
What to work onWhy it mattersWhat to try
You already film your swing. StrokeVision tells you what to actually look for — turning your practice videos into clear, personalized coaching on what to fix, why it matters, and what to try next.
You're making contact a touch late.
Your elbow stayed slightly bent at contact — often a sign the ball got behind you. Try meeting it a half-step earlier, out in front of your hip.
Built on the same fundamentals real tennis coaches teach
Lessons are expensive and hard to schedule. Between them, you practice on repeat with no feedback. YouTube tips are generic. And filming yourself only helps if you know what to look for.
You can film every forehand and still not know what changed. StrokeVision closes the gap between having video and knowing what to fix — so you can stop guessing from practice clips and finally see what your body is actually doing.
Three steps. Under a minute. Every time you film.
Set your phone at the side of the court, full body in frame — or pick a clip you've already filmed. Slow-mo welcome.
It analyzes your body through the swing — feet, knees, hips, shoulders, arm, contact, and follow-through — across 21 forehand technique signals.
Clear coaching on what to work on and why, a skeleton overlay so you can see it, and a session-by-session timeline that shows what's actually improving.
Power and control come from the ground up — your feet, knees, hips, shoulders, and arm all working together. A small mistake down low shows up as a bad shot up top. StrokeVision watches all of it, so the advice you get fixes the real cause — not just what you happened to notice.
Clear coaching tips tied to your actual movement — what to work on, why it matters, and what to try next. Not generic advice. Yours.
See your form visually — not just as numbers. Watch your swing replayed with your body mapped on top, frame by frame.
Foot placement, knee bend, balance, timing, upper-body turn, arm extension, and contact mechanics — the fundamentals, from the ground up.
Compare your latest swing to past sessions and see what's actually changing over time — not a guess, a trend you can watch move.
Line your swing up against elite strokes to learn from how the body moves — reference, not prescription. Never “copy this exactly.”
Every measurement carries a confidence level, so you know when the app has a clear read — and when video quality limits what it can see.
Lay your swing right on top of a pro's and watch them side by side — so you can actually see the difference, not just read about it.
Nadal & Alcaraz coming next.
Generic tennis advice is for everyone. StrokeVision gives feedback on your swing — every session.
“I've filmed myself for years and never knew what I was looking at. The first session told me my contact point was late — something three lessons never named clearly.”
“It doesn't bury me in numbers. It picks the one thing, tells me why, and I go work on it. That's exactly what my coach does — but I get it every single practice.”
“Overlaying my forehand on Federer's was a wake-up call. I could finally see how little I was rotating my hips. My ball is heavier now.”
Start free. Five full coaching sessions, no card required.
5 full coaching sessions
Just $6.67/mo — save 33%
Flexible, cancel anytime
One private lesson is ~$60–150. A year of StrokeVision is less than one.
StrokeVision begins with deep forehand analysis, then expands across backhand, serve, volley, overhead, slice, and return — a scalable AI coaching platform for tennis, and eventually other racket sports. Forehand is the first stroke, not the ceiling.
Around 87 million players worldwide, roughly 24 million in the US. Most everyday players practice far more than they can afford to get coached — and many already film themselves. That's a ready-made audience for coaching delivered through an app.
Every tip is backed by real coaching principles that experts have checked — not made-up advice. And because the app is honest when it isn't sure, players trust it in a way they won't trust apps that fake confidence. It's also built to handle every kind of shot, not just one.
$9.99/month or $79.99/year — next to nothing against a $60–150 lesson. A free trial turns curiosity into a habit, and founder pricing rewards early believers. Each swing costs us almost nothing to analyze, so most of the revenue is profit.
The app is live and testable today. The whole experience works end to end — record a swing, get it analyzed, see your coaching, compare to a pro, and track your progress — with payments and feedback already built in.
Next: more strokes, coach workflows for teaching pros, and an expanding pro-reference library. Further out — racket and ball tracking and sensor-enhanced analysis. Every session recorded makes the coaching model better.
We're raising to accelerate multi-stroke coverage and the external beta.
Request the deckWe're starting with the forehand, fully coached. But the app was designed from day one to handle every shot in the game.
21 signals, validated coaching KB, pro overlay.
Each one coached just as carefully as the forehand.
Nadal & Alcaraz to compare against, plus more camera angles.
Get a real coach to check your swing on demand. Then pickleball, padel and badminton.
Every video is different. Camera angle, lighting, framing, and how much of your body is visible all affect the read. StrokeVision shows a confidence level on every measurement — and holds back instead of guessing when the video isn't clear enough.
Reference, not prescription. Technique feedback only — never medical, injury, or equipment advice.
Right now it fully coaches the forehand (filmed from the side). The backhand, serve, volley, overhead and more are on the way — each one coached just as carefully. We'd rather get one shot truly right than half-coach all of them.
Set your phone at the side of the court, roughly 10–15 feet away, with your full body in frame. Side-on, well-lit, slow-motion clips give the sharpest coaching. If the angle or lighting limits what we can see, the app tells you instead of guessing.
It's the technique feedback loop you'd get from a coach — on every practice video, instantly. It focuses on stroke technique only. It does not give medical, injury, or equipment advice, and it isn't a substitute for in-person coaching on strategy, mental game, or movement. Think of it as your coach's eye, every session.
No. Pros are a reference, not a prescription. Bodies and styles differ; laying your swing over theirs helps you see how your body moves, not copy a number.
Five full coaching sessions free, no card. Then $9.99/month or $79.99/year. The first 100 subscribers lock in founder pricing of $4.99/$39.99 forever.
Your videos live in your account and are used only for your own analysis. You're in control of your data, and full details are in the in-app privacy policy.
Record your forehand. See what to fix. Improve with feedback every session.
Free 5-session trial · No credit card · iOS