draib
Pro biomechanics + AI coaching

Coach yourself
like a pro.

Film your stroke. We track every joint, compare your biomechanics to Alcaraz, and write you an AI coach report in 30 seconds. The depth a private coach charges $100/hr for — in your pocket.

Free to start · No credit card · Cancel anytime

Analyzing

We're reading
every frame.

Watches every move, breaks down your stroke, scores you against the pro of your choice.

YouScoring
shoulder· elbow· wrist· hip
Reading your pose…8%
AI coach report — overall grade and kinetic-chain breakdown

2,400+

Strokes analysed

120+

Pro reference videos

4.9★

Average user rating

< 30s

From upload to report

How it works

Three steps from phone video to coach-grade analysis.

Step 01

Film your stroke

Phone on a tripod (or a friend), one clip of you serving / hitting / driving. That's it.

Step 02

We watch every frame

The AI breaks your stroke into the moments that matter — and quietly. Nothing ever leaves your phone for processing.

Step 03

Compare. Improve. Repeat.

Line yourself up next to Alcaraz or Djokovic. Get back a plain-English report and the three drills to do this week.

Inside the analysis

Every joint. Every frame. Every phase.

A custom biomechanics engine on top of MediaPipe pose tracking. Here's what we measure on every stroke before the AI even starts writing your report.

33 body landmarks

Full pose tracked head-to-ankles, every frame.

14 joint angles

Both sides: elbow, knee, hip, shoulder — plus trunk lean.

X-Factor

Hip-to-shoulder separation — the rotation engine of every stroke.

Vertical drive

Jump tracking via hip displacement — your power source.

Stroke phases

Trophy, contact, follow-through — auto-detected on every clip.

Frame-perfect sync

Your video and the pro's, every keyframe aligned together.

Measured locally on your phone · nothing leaves your device unsigned

The AI Coach Report

Not a score. An actual coaching plan.

Most apps give you a number. We give you a real biomechanic breakdown of what's happening in your stroke, the three things to fix in priority order, drills you can do this week, and a heads-up on anything that could lead to injury — all in plain English.

  • Overall grade + a clear breakdown by stroke phase
  • Where your power is leaking — legs, hips, shoulder, wrist
  • Top 3 fixes ranked by impact
  • Drills tailored to your level and goal
  • Injury heads-ups so you don't hurt yourself improving
Try the analysis free
draib

Generating report…

Side-by-side compare — your stroke vs a draib pro, synced phase by phase
Side-by-side comparison

See the gap. Close the gap.

Watch your stroke and the pro's side-by-side, perfectly in sync. Tap a key moment — TROPHY, CONTACT, FOLLOW-THROUGH — and both videos jump there together. You'll see exactly where you're losing power, no guessing.

6 pros, more weekly

Alcaraz, Djokovic, Federer and growing.

Frame-perfect tracking

Every move of yours, mapped clearly against the pro.

Before & After

Your stroke last month vs today.

Tag two of your own clips as BEFORE / AFTER and put them side-by-side — every angle, every phase, the same body, the progression you actually feel. The before-and-after a private coach would film for you, automatic.

Why this matters: most coaching apps make you re-prove yourself every session. We treat your library as a story.

Start your story
Before / After side-by-side compare of your own stroke at two points in time
Bring your crew

Challenge a friend. Brag online.

Send a friend a comparison invite, both record the same stroke, and put your videos side-by-side — same phase chips, same delta tiles, same level of detail you get against a pro. Every comparison saves to your library. One tap exports the video to Instagram.

  • Friend challenges — send a link, both upload, see the gap
  • Save & revisit any comparison — never lose a great rally
  • Share to IG: comparison video with phase callouts, ready to post
Start a challenge
Library comparisons tab — saved challenges with friends and yourself
draib mirroring a right-handed pro (Nadal) for a left-handed player
Built for both hands

Lefty? No problem.

Almost every reference video out there is a righty. draib asks for your dominant hand once and flips the pro for you — so a lefty comparing against Federer feels like watching another lefty, not a confusing mirror.

Why this matters: half the coaching tips out there are written for righties. We rewrite them in your language, so every cue makes sense the first time you read it.

Try the mirror
Sports

Built for racket sports — expanding fast.

Start with what works today; tell us what you want next.

Don't see your sport?

draib's biomechanics engine works for any sport with discrete motion phases.

Volleyball spike. Olympic lift. Boxing combo. Cricket drive. Tell us which one matters to you and we'll add it to the roadmap.

Request a sport
For coaches & academies

Grow your roster. Online too.

draib Coach is your full client-management tool — magic- link invites, per-student CRM, voice notes pinned to exact frames. Coach in person, online, or both. Charge what you're worth and scale beyond your local courts.

  • All-in-one student management
  • Voice notes pinned to specific frames
  • Magic-link invites — no signup friction
  • Branded coach reports with your name
  • Per-student CRM + progression view
  • Scale to online clients worldwide
See the full coach toolkit

From $75/mo · 20 students included

Coach progression dashboard
Pricing

Honest plans. Cancel anytime.

Start free, upgrade when you're ready. No usage gimmicks, no surprise add-ons.

draib Free

$0

Forever

Try the full analysis flow on one video — no card required.

  • 1 active video at a time
  • Side-by-side comparison vs a pro
  • Pose-overlay tracking on every frame
  • Edit the key moments yourself
  • Pay $4.99 per AI report when you want one
Start free

draib Pro

Most popular

$9.99

per month

$71.99/yr · save 40%

10 AI coach reports per month + your full progression history.

  • Up to 10 active videos
  • 10 AI Coach Reports per month
  • Top-ups available at $4.99/report
  • Multi-video evolution compare
  • Voice + text notes on every clip
  • Priority support
Get Pro

Run an academy or coach professionally?

Coach plan starts at $75/mo for 20 students.

See coach features

Prices in USD. VAT shown at checkout.

What players say

Built with the people actually using it.

"I've been working on my serve for years. draib showed me in 30 seconds what three coaches couldn't — exactly why I was losing power. Fixed it in two sessions."

DR

Daniel R.

Tennis player · 4.0 NTRP

"I have 14 students. I used to spend Sundays cutting clips and writing notes. Now they upload, I drop voice notes, done. It's the only tool my whole roster actually uses."

CL

Coach Lucia M.

Padel coach · Madrid

"The side-by-side with Alcaraz is brutal at first. Then it gets addictive. I check the score after every Saturday morning hit."

MT

Marco T.

Recreational tennis · Italy

FAQ

Common questions.

Just a phone. A tripod or a friend filming makes it easier, but anything stable works. Vertical or horizontal, any framing where your full body is visible.

Stop guessing.
Start improving.

Free forever for one video. Upgrade when you're ready — we'll be here either way.

Open draib

Works in your browser · Add to home screen for the app feel

Coach plan & partnerships

Get in touch.

Coaches, academies, federations — tell us about your roster and we'll come back with a tailored plan within 48 hours.