see it in motion

watch a session flow

from your playlist to the calibrated arc, into the app — the whole ritual in under a minute.

sound-guided movement, emotionally scored

turn your playlists into workout-ready music flows

your workout, emotionally scored and guided by sound. connect spotify, choose your intensity, and receive a calibrated arc — warmup, build, peak, cooldown, recovery.

connect spotify
free · zero audio modification · pure resequencing
WARMUP·BUILD·PEAK·COOLDOWN·RECOVERY· WARMUP·BUILD·PEAK·COOLDOWN·RECOVERY·
the calibrated arc

every session has a shape

we reorder your own tracks — never altering the audio — into five phases that rise and fall with your body.

warmup
soft entry, breath, ground.
build
tempo climbs, sweat starts.
peak
anthem energy, full output.
cooldown
tension releases, slow exhale.
recovery
stillness, savasana, reset.
how it works

three steps to flow

01
connect spotify

bring your own playlists. we read tempo and energy — and never touch the audio itself.

02
set your vibe

one dial from calm to energize. a readiness light suggests how hard to go today.

03
move & adapt

your tracks resequence live to your heart rate — holding the zone, with gentle cues.

the app

the whole ritual,
in your pocket

wellness and fitness in one calm place. live heart-rate sync, a readiness light for permission to rest, and an afterglow recap that shows how your mood shifted.

live heart-rate sync
audio holds your target zone in real time.
readiness light
green, amber, or rest — no judgment.
afterglow recap
see your mood shift, streak, and next step.
FLOW STATE
music that moves with you
begin
IN FLOW12:04
128
BPM
holding your zone
version 2.0 revised from user feedback

what we changed

people told us they liked the idea but wanted to know how it actually helps. so we rebuilt the explanation, and the product.

01
beyond BPM

we now explain motivation, focus and recovery — not just tempo matching.

02
you, not the class

built for the individual workout first. group features come later.

03
wearables

apple watch and oura ring feed live heart rate, HRV and recovery.

04
the science, plainly

a new in-app section on entrainment and nervous system regulation.

the science

sound is a nervous system tool

your body already syncs to rhythm. we just aim it — up when you need output, down when you need recovery.

entrainment

heart rate and breathing drift toward a steady external rhythm. a rising tempo pulls your effort with it, so you climb without forcing it.

perceived effort

the right track lowers how hard the work feels at identical output. you last longer because your brain argues with you less.

nervous system regulation

slow, low-frequency sound shifts you toward the parasympathetic state. that's what makes a cooldown actually recover you instead of leaving you wired.

HRV as a dial

heart rate variability shows how much load your body can take today. high HRV, we let you climb. low HRV, we hold you back — before you feel it.

wearables

your body sets
the tempo

connect a wearable and flow state reads heart rate, HRV and recovery live — then adapts the music mid-session. no preset can do that.

apple watch
live heart rate · workout rings
supported
oura ring
HRV · sleep · recovery score
supported
whoop · garmin
on the roadmap
soon
58
HRV ms
54
RESTING BPM
7h12
SLEEP
72
RECOVERY
today's recommendation
a steady build, then a long exhale

mid-range HRV — we'll climb gradually to 138 BPM and spend the last 4 minutes under 70 to bring your system down properly.

try it right here

set your intensity

drag the dial. this is the same control that shapes a real session.

calmsteadyenergize
124
PEAK BPM
18
MINUTES
focus
NERVOUS SYSTEM

your next workout, in flow

connect once. every session after moves with you.

connect spotify
free · zero audio modification · pure resequencing
connect spotify

flow state will read your playlists' tempo and energy to build your arc. we never modify or store your audio.

agree & continue
not now
connecting…

reading your library

connected
as lena · 1,240 songs
open the app