A start that asks
Every cold start asks how you feel, across twelve moods. Then it measures on its own using the signals you already authorised, with a “How do we work this out?” sheet explaining each one.
Find your frequency
NewMe Hertz is a wellbeing and self-knowledge tool. It estimates a likely emotional state from physiological signals you authorise, and accompanies you with guided breathing and an optional neuroacoustic layer.
It does not diagnose, does not measure emotions, and is no substitute for professional care.
What it is
An app that estimates — it doesn't pronounce
It began as an Apple Watch proof of concept and is now an iPhone app with the watch as its companion. The mood estimation engine runs on both devices.
A destination for today
Twelve goals with names of their own — studying, before a meeting, a break for your head — and a picker for how much time you have, from 5 to 30 minutes, suggested by goal.
Music, if you want it
Apple Music suggestions based on the destination and your taste — up to three genres and three artists — or a direct Spotify link. Skip any step and you get the usual menu.
The flow
Six screens, from how you are to where you want to get
This is how the app starts cold. Every step can be skipped; skip them all and you get the usual menu.
01It asks you
“How are you feeling right now?” Twelve moods in a honeycomb. It is the only required step: your self-report is the signal that corrects all the others.
02It measures on its own
It combines the signals you already authorised — Apple Watch, camera, location, calendar, motion — with a “How do we calculate this?” sheet explaining each one.
03You pick a destination
“Where would you like to go today?” Twelve goals, one marked as suggested from your estimate, and how much time you have: 5 to 30 minutes.
04Music, if you want it
Suggestions based on the destination and your taste — up to three genres and three artists — or a direct Spotify link.
05A preview of the journey
The whole route before you start: source emotion, intermediate milestones, Hz per leg and the breathing technique for each phase, each with its evidence level.
06The session
Guided breathing with the neuroacoustic layer and, if you enable it, a whispered voice accompanying each phase.
Screenshots of version 0.6.0 (12) on iPhone 17, taken from the simulator during release verification. They are in English because the simulator boots in “en”; the app runs in Spanish, English and Portuguese.
How it estimates
Five signals, orchestrated
The estimate never comes from a single number. It is composed from independent signals, each with its own declared quality, and the result always travels with its confidence.
1
Autonomic state
Heart rate variability as an indicator of sympathetic-parasympathetic balance, read against your own 90-day baseline.
2
Individual resonance frequency
The breathing rate at which your cardiovascular system reaches peak coherence. It is personal, and it is the most specific piece of the system.
3
Movement and activity
Physical activity context, so a brisk walk isn't mistaken for emotional arousal.
4
Voice and prosody
Prosodic features — cadence, energy, pitch — processed on device, only when you turn it on.
5
Self-report
What you say you feel. It is the signal that corrects all the others, and the only one the app treats as ground truth.
A second engine trained on real data (WESAD) runs behind a gate that decides tick by tick whether it is worth using. It is marked experimental and explains which signals weighed on each result.
The map
Seventeen levels, a symbolic frame
The app organises emotions over David R. Hawkins's Map of Consciousness. It is a conceptual map belonging to the project, not a biological measurement: the app never reports an exact point, always a range.
20Shame · Humiliation😳
30Guilt · Blame😔
50Apathy · Despair😑
75Grief · Regret😢
100Fear · Anxiety😨
125Desire · Craving🤤
150Anger · Hate😠
175Pride · Scorn😏
200CourageThreshold of integrity · Affirmation😤
250Neutrality · Trust😐
310Willingness · Optimism😃
350Acceptance · Forgiveness😌
400Reason · Understanding🤓
500Love · Reverence😍
540Joy · Serenity😁
600Peace · Bliss😇
700–1000Enlightenment · Ineffable🌞
Level 200 is the fulcrum of the map. Hawkins also flagged 175 (Pride) as the most delicate level, because it is the first that feels good from the inside and therefore resists self-examination.
Journeys
Guided breathing and a neuroacoustic layer
A journey combines a breathing pattern with binaural beats and isochronic tones and — if you enable it — a whispered guide voice that accompanies each phase.
Breathing with evidence
The techniques draw on scientific literature. Slow breathing may reduce resting respiratory rate and may amplify heart rate variability.
A ramp, not a jump
A session does not change frequency abruptly: it climbs in sustained steps, because jumping breaks entrainment. Short at 14 minutes, standard at 30, deep at 60.
What it learns from you
As sessions accumulate, the app observes your own history: which technique you recover faster with, which duration has worked best for you so far.
Experimental
About the frequencies in Hz
The frequencies are a symbolic and experimental accompaniment, outside scientific evidence. The app always presents them as a suggestion, never as a measured property of your body.
Neuroacoustic entrainment holds up as a physical phenomenon, but its effects on subjective state are far more modest than is usually claimed. The project documents those limits openly.
Privacy
Your signals are yours
Nothing the app estimates about you leaves the device unless you decide it should.
On device
Estimation runs on your iPhone and your Apple Watch. The model ships inside the app.
Permission per signal
Every data source is authorised separately, and you can revoke it. Without permission, that signal simply doesn't enter.
No hidden score
There is no number about you stored on any server. Trend estimates are never a score and never a diagnosis.
Early access
Request access to the app
NewMe Hertz is in closed testing. Leave your name, email and country and we will write when there is room in your region.
Status
Where the project stands
Version 0.6.0. These are the closed milestones and what each gave the product.
M1Shipped
Foundations
Memory of the last hours and days of mood, the dominance axis that completes valence-arousal-dominance, and the 90-day personal baseline.
M2Shipped
Passive sensing
Background estimates with your permission: fatigue, autonomic balance and circadian alignment, with signal quality always visible.
M4Shipped
Neuroacoustic journeys
Guided sessions with binaural beats and isochronic tones.
M3Shipped
CoreML engine
A second engine trained on real data, behind a gate that decides tick by tick whether to use it. Experimental, with an explanation of which signals weighed in.
M7Shipped
Wellbeing trends
Trend estimates inspired by well-known wellbeing questionnaires. Never a score and never a diagnosis: always with declared confidence and factors.
M6Shipped
Personal learning
A bounded, vetoable adjustment — four numbers, not on-device retraining — that uses your own self-reports to correct the engine's output. Measured as safe: it never worsens the estimate.
L10NShipped
Three languages
The app follows the system language, with a manual override in Settings. Spanish is the authored copy, not a translation.
M5Pending
Validation on physical watch
Battery, field behaviour and the cost of the neuroacoustic audio node on a real Apple Watch.
Two open risks, documented
- The gate that decides when to use the CoreML engine limits how much the model is exposed, but it does not recognise the people it serves worst: for them it protects no more than for anyone else.
- The part of the engine that estimates valence and arousal has not yet been validated against what people say they feel outside a laboratory.
Documentation
The project, in the open
The product deck and the full technical reference are published.
The framing, no small print
NewMe Hertz is a wellbeing and reflection tool. It is not a medical, diagnostic or therapeutic tool, and it does not replace care from a health professional.
The levels of the map are conceptual. The audio frequencies are a configurable aesthetic assignment with no scientific claims. What the app produces are estimates with declared confidence — not facts about you.