01 / Today's coachingOne thing to fix
One thing to fix
next game.
See today's plan, based on your records.
TUNED DOT · Tennis sensor + AI coach
Your racket,
your own coach.
Clip it onto your racket and play as usual.
Your records sync to the app automatically,
and it suggests one thing to focus on next game.
For players who want their lessons to stick,
and club players getting ready for matches.
We're building it so you know what to check, even when you practice alone.
Free waitlist · No payment
and the impact analysis shown is still being validated.
How it works
Clip it on. Play. Done.
Connect it to the app once. After that, all you do is clip it on and play.
Your records sync to the app automatically.
- 01
Clip it on
It sits on the strings like a dampener.
Connect to the app just once. - 02
Play as usual
The sensor records your swings and impacts.
No filming, no extra gear. - 03
Auto sync
Open the app and your records are already there,
with one thing to focus on next game.
- No filming needed
- Your own racket
- Records sync automatically
App screens · Demo
What will you see in the app?
From your records to a plan for next game.
01 / 03
Swipe to browse · Tap a screen to enlarge it
02 / Impact mapWhere do you
Where do you
usually hit?
Contact by shot type (in validation).
03 / AI coachQuestions?
Questions?
Ask the coach.
Ask about your own records in the app.
Preview screens of the app in development. All records are demo data.
Some features, including impact analysis, are still being validated; the final screens and features may differ.
Before you sign up
Will it show where the ball hit?
Impact location on the string bed and sweet-spot detection are still in development and validation, and we don't promise them as finished features. We'll share the results and launch scope once they're settled.
Can it tell me why a shot went wrong?
We're building it so your racket's data shows how your shots differ. It doesn't observe your body position, the ball's flight or your opponent's play, and it won't pin the cause on a single number.
When does it launch, and what will it cost?
The launch date and price aren't set yet. We're launching in Korea first; international availability isn't scheduled yet. Joining the waitlist is free and we don't collect payment details. Signups are ranked first-come: if TUNED becomes available in your country, you'll be offered the chance to buy before general sale (once per person, no obligation to buy). Details such as the priority window and quantities will be emailed before launch.
Launch & beta updates
Want to try it on your racket?
We're launching in Korea first; other countries aren't scheduled yet.
If we launch in your country, you'll get first-come priority, plus launch and beta news.
Priority if we launch in your country No payment, no obligation Only launch and beta news
We're still developing and validating the product.
Launch timing, pricing and final features will be announced once confirmed.
Be among the first
Be among the first
to try it.
Leave your email to get launch and beta news.
Tell us what you'd like to practice, too.
This opens the sign-up form. No payment is needed.
The form explains how your data is collected and kept.
See you on court
You're on the list.
Thanks for joining.
You're on the waitlist.
If TUNED becomes available in your country, you'll hear before general sale.
is signed up.
We don't send a confirmation email.
Tell a friend you play with