Your Mind is Part of Your Training

Kona is an AI companion that checks in around your training. It reads your calendar and your WHOOP data, then asks how you're actually doing. It isn't a coach and it won't rewrite your plan — it's someone to talk to on the hard days.

Request access

Early access rolls out in small groups. No spam, no launch countdown emails.

The NAFAS home screen, showing Kona's presence orb and the week's training
Tuesday, 21:14
Skipped the long ride. Feel like I'm falling behind.
One ride, three weeks out, on 41% recovery. What's the worry underneath it?

It runs on your wrist all day, quietly keeping score.

0%
Recovery
0%
Sleep
0.0
Strain

Illustrative values

TUE · LONG RUN DONE
TUE · LONG RUN
Kona Saw you finished the long run.
KONA
Three hours is a long time alone with your thoughts. How are you doing after it?
WHOOP Integration

Kona reads your body before it asks the question.

Connect WHOOP once and recovery, HRV, resting heart rate and sleep performance flow in every morning. When WHOOP scores a workout, Kona knows it happened and opens the check-in itself — you never report your own numbers.

Recovery and sleep only. Tokens are encrypted, and disconnecting removes the connection and its data.

This morning, from WHOOP
41% Recovery

Low recovery doesn't change your plan. It changes how Kona opens the conversation.

Recovery 41%
HRV 38 ms
Resting heart rate 54 bpm
Sleep performance 72%
Sample reading. Kona uses it as context, never as a verdict.
How it connects
1 Tap Connect WHOOP in onboarding and approve access in the WHOOP app.
2 Recovery and sleep sync each morning, plus every workout WHOOP scores.
3 Disconnect whenever you like — the connection and its data go with it.

Meet Kona

Named after the race, built for the eleven months before it.

01

Check-ins, not check-ups

Kona opens the conversation after a session or before a hard week. You answer in a sentence or ten — both are fine.

02

It already knows the context

Your training calendar and WHOOP recovery come in automatically, so you never have to explain what you did or how you slept.

03

Deliberately not a coach

Kona won't move your intervals or second-guess your plan. It stays on the part your training plan has nothing to say about.

What's in the app

01

Conversations with Kona

Claude-powered, with a hard rule against training advice and a safety check on every reply.

02

Post-workout check-ins

WHOOP scores a session, you get a nudge, and Kona opens with your own scores already in hand.

03

Voice notes

Talk instead of typing when a sentence is more than you have in you.

04

Race and taper awareness

Your calendar, tomorrow’s session and the countdown to race day shape the tone, not just the timing.

05

Weekly insights

Patterns across your check-ins, with one tap to talk them through.

06

What Kona knows about you

The things it remembers, listed and dated, so its awareness is provable rather than assumed.

Early access opens in small groups.

Join the waitlist