Sevix
Get the App
Watch + iPhone 100% Local Coach

Sevix

Score the rally.
Train with evidence.

Score each rally on Apple Watch. Keep iPhone synced courtside. Review the evidence when the match ends: no video, no cloud.

Get the AppHow it works
‹ Back07:22 Long press to lock
Server MeService Side L
579:42
07
Me
04
B1
MeLeft
Game 1 · 07:22
Core features

Built for
the rally.

01

Wrist motion tracking

Apple Watch detects swing rhythm, step pace, and rally intensity automatically.

02

Heart rate context

See exactly when fatigue starts changing the points you win and lose.

03

Live iPhone board

Keep the score, server, side, and match clock visible courtside.

04

Singles + doubles

Set format, first serve, scoring target, and match flow before the warmup ends.

05

Local AI coach

Turn point timeline, workout data, and motion summaries into one next drill.

06

Evidence history

Review trends, recovery, notes, and training focus without video or cloud analysis.

Live scoring

Start. Score.
Stay in the rally.

Set the format, choose first serve, then let Watch handle the points while iPhone shows the board.

  • Pinch, tap, or Digital Crown
  • Toss or choose first server
  • Lockable referee display
Start matchSingles · 21 · Best of 3
InputWatch
ServeToss
CuesOn
Match mode
Score format
First serve
Main takeawayHigh confidence

Train receive next

High-HR points exposed the pattern.

Impact84
Recovery67
Training3
Why this judgment
Hexagon

Serve strong. Receive weak.

Fitness

Scoring dipped at high HR.

Recovery

Load is elevated.

Motion

Watch data supports the call.

Next drillReceive + third shot
Local AI coach

Know what to
train next.

A local coach turns score, heart rate, motion, and recovery into one clear next step. Transparent reasoning, no black boxes.

  • Strongest and weakest phase
  • Fatigue and recovery signals
  • A drill you can do next
Health + history

Your match log
has a pulse.

Heart-rate zones, recovery, load, notes, and recent trends live in one place with zero video capture.

Read the coach guide
Health summaryHeart 148 avg

Recovery, load, trends

Recovery74
LoadHigh
MotionStable
Heart-rate zone points
Control
S8 / L3
Pressure
S4 / L5
High load
S2 / L6
Private by design

No video.
No cloud coach.

Advice comes from your point timeline, heart rate, workout, and motion summaries. Simple inputs. Clear reasoning. Everything stays on your device.

Plans

Start free.
Upgrade for the coach.

Free

$0

Start scoring.

  • Watch and iPhone scoring
  • Recent match history
  • Starter analysis
Start scoring free
Most popular

Pro

Monthly or yearly

Train with the evidence.

  • Local AI Coach
  • Heart-rate and recovery insights
  • Full history and trends
  • HealthKit workout analysis
Download now

Lifetime

One-time

Own the coach.

  • All Pro features
  • Lifetime access
  • Future coaching upgrades
Download now
Questions

Before the
next session.

How does the Local AI Coach work?

The coach combines your match score timeline, Apple Watch heart rate, wrist motion data, and match history. It runs locally on your device to generate specific training drills backed by evidence.

Do I need Apple Watch to use Sevix?

Sevix is built around Apple Watch scoring and iPhone review. The best flow is scoring from Watch during play and reviewing the match on iPhone after the final rally.

Does Sevix support doubles?

Yes. Sevix supports singles and doubles setup, including scoring flow, server context, history, and point ownership attribution for key rallies.

Does the coach require video or cloud analysis?

No. Sevix focuses on local, explainable review from point timeline, workout data, heart-rate context, motion summaries, and match history.