Biometric sound synthesis

Your body
becomes
sound.

Praenox reads your HRV, sleep architecture, and stress — then generates a therapeutic soundscape engineered for your exact physiological state. Not generic. Not approximate. Yours.

See plans See the data
+22%
Deep sleep improvement
+26%
REM sleep improvement
+111%
Sleep duration increase
56.8
Avg HRV · stress 22.8
Real data · Feb 25 – Jun 16, 2026

The numbers
don't lie.

112 nights tracked. 4+ years of Zepp baseline versus what happened after Praenox started. No cherry-picking.

Live — updated daily
Deep sleep
+22%
15.4% → 18.8%
REM sleep
+26%
22.0% → 27.6%
Sleep duration
+111%
3.3h → 6.95h
Avg HRV
56.8 ms
Avg stress: 22.8
Free vs Pro

Pick your
level.

Free reacts to today. Pro learns your patterns, detects chronic deficits, and acts before the decline starts.

Free
Praenox
Free · Windows · forever
Download — Windows
Coming soon
Sound engine
✓
Full biometric fingerprint synthesis — HRV, HR, deep sleep, REM, and stress each drive a different audio dimension
✓
6 protocols — Parasympathetic Restore, Delta Induction, Cortisol Reset, REM Restore, Cardiac Calm, Maintenance
✓
Binaural beats, isochronic pulses, breath guide, noise color, solfeggio — all tuned per session
✓
Palette & style selection — nature, instruments, Tibetan bowls, sacred harmonics, and more
✓
MP3 export — listen on any device with earbuds
Intelligence
✓
Personal baseline calibration from your history — HRV, HR, sleep, stress medians
✓
Protocol selected daily from your worst metric vs baseline
✗
No long-term pattern detection — reacts to each day independently
✗
No spike smoothing — protocol changes whenever your metrics change
✗
No sleep debt tracking or forced protocol carry-over
Tracking
✓
Pattern Drift charts — HRV, sleep, stress history
✓
Day comparison — any two saved days side by side
✓
Data Vault — import, export, automatic backup
Pro
Praenox Pro
One-time · lifetime licence · unlimited devices
Join waitlist
Coming soon
Everything in Free, plus
✓
Fusion engine — learns your HRV trajectory and predicts decline before it happens. Forces preventive protocol when Act risk is detected
Pro
✓
Stability Mode — locks protocol across multiple days when a chronic pattern is confirmed, not just reacting to today's worst metric
Pro
✓
Sleep Debt Gate — detects chronic undersleep vs your personal baseline; forces Delta Induction until you catch up (3 consecutive sufficient nights to close)
Pro
✓
HRV Velocity — tracks rising/falling trend across days; responds to trajectory, not just today's value
Pro
✓
BiometricContext — full history feeds each generation; personal sleep target calibrated from your data, not a fixed 7h rule
Pro
Fusion stages
✓
Stage 1 — Signal (0–20 HRV entries): Watch/Act banners appear, engine is building your model
✓
Stage 2 — Locked (21–59 HRV entries): Act risk forces protocol; sessions become preventive
✓
Stage 3 — Predictive (60+ entries + accuracy >55%): Self-calibrating thresholds; sub-labels Calibrating → Tuning → Predictive
Engagement & streaks
✓
Points, levels, badges, export confirmation system (+13 listened / −5 skipped)
✓
Streak shields — earn 1 shield every 7 streak days (max 2); fires automatically on missed days
✓
HMAC-protected achievement profile — isolated per user account
FeatureFreePro
Biometric fingerprint synthesis✓✓
6 biometric protocols✓✓
MP3 export✓✓
Personal baseline calibration✓✓
Progress charts & day comparison✓✓
Long-term pattern detection✗✓
Fusion engine (predictive)✗✓
Stability Mode✗✓
Sleep Debt Gate✗✓
HRV Velocity tracking✗✓
Streaks, shields & milestones✗✓
PriceFreeOne-time · lifetime
Pro · Fusion engine

Control
before it
happens.

Free reacts to each day in isolation. Pro learns your trajectory — it knows when your HRV is falling before you feel it, and forces the right protocol before decline arrives.

Join Pro waitlist
Coming soon
01
Signal
0–20 HRV entries
Fusion watches and alerts. Watch/Act banners appear. No protocol is forced — the engine is building your personal model from your history.
02
Locked
21–59 HRV entries
Act risk detected forces the protocol. Sessions become preventive — the engine overrides the daily fingerprint when a decline pattern is confirmed.
03
Predictive
60+ entries · accuracy >55%
Self-calibrating thresholds. Sub-labels emerge: Calibrating → Tuning → Predictive. The model is now specific to you, not generic population baselines.