TESTFLIGHT BETA

Know what your body is doing today — and why.

Hupay turns your own sleep, heart and activity signals into four scores you can question. Every number names the evidence behind it and the baseline it was measured against.

Download Hupay on the App StoreDownload Hupay on the App Store See how scoring works
iPhone, iPad & Apple Watch No account Stays on device
9:41
RESERVE · 9:41
72/100
Woke 81now 72usual 76
DO THIS NEXT
Take the one-minute reset
Reserve is draining faster than usual for this hour.
Stress 35 · balanced
Overnight HRV 48 ms vs 39 ms baseline
Recovery 81 · strong
Slept 7h 30m · resting HR 58 bpm
MOVEMENT
46strain · moderate
4
Scores: stress, energy, recovery, strain
60
Days of history imported on first run
7
Watch complications, plus a dashboard
0
Accounts, servers and third-party trackers
01 · WHAT YOU SEE

Four scores, and the working behind each one

Nothing is presented as a verdict. Tap any score for the factors that moved it, what it means, and the caveat that belongs with it.

RESERVE · 9:41
72/100
Opened at 81 · usual now 76
Stress 35
HRV 48 ms vs 39 ms
Recovery 81
7h 30m · RHR 58 bpm
Trends
Observed days only
STRESS
35
ENERGY
72
RECOVERY
81
Score history
7 complete days · gaps are never filled in.
TIME ASLEEP
7h 30m
8h 09m in bed · 92% efficient
SLEEP SCOREStrong
84
Duration88
Efficiency92
Stage balance74
TODAY

Energy Reserve, and what is spending it

The reserve opens at your overnight recovery and drains through the day. Beneath it, an evidence strip states the signal behind each score — overnight HRV against your baseline, last night's duration, this morning's resting heart rate.

TRENDS

Your stored days, gaps and all

Seven or thirty days of any score. Days you did not wear the watch stay visibly empty rather than being interpolated into a smooth line that never happened.

SLEEP

A sleep score that shows its parts

Duration, efficiency and stage balance are scored separately and shown separately. When a source records no stages, that component is removed from the calculation rather than counted as zero.

Energy Reserve

Capacity left today, opening at your overnight recovery.

Stress

Physiological load against your own normal, not a population average.

Recovery

How well last night set you up, from sleep and overnight heart data.

Strain

Movement and intensity, with workouts broken into their bands.

Check-in

Sensors show strain; only you know the feeling. Six moods, four steps.

Insights

Patterns that appear only when enough of your own days support them.

02 · METHOD

Explainable estimates, not guesses

Every score is derived on your device from data you already have, compared against the days Hupay has stored for you.

STEP 01
Read

Read-only access to Apple Health. Up to 60 days of scoring signals and six months of available sleep history on first run — heart rate, HRV, sleep, steps and workouts.

STEP 02
Baseline

A rolling baseline is built from your own stored days. Until there are enough of them, scores carry a lower confidence label and say so — the app never pretends to a certainty it does not have.

STEP 03
Explain

Each score opens into the factors that moved it, the baseline each was measured against, what the number means, and the caveat that belongs with it.

Hupay is a wellness and self-awareness app. It is not a medical device, it does not diagnose, and it never claims to detect an emotion from a sensor.

72reserve
4 min ago
Keep your usual pace
Reserve is high for this hour.
35
STRESS
81
RECOVERY
46
STRAIN
Check In
03 · APPLE WATCH

On your wrist, and honest about it

A native watchOS app with its own check-in, score detail and health data list. Readings are cached so the app opens instantly, and anything stale is marked rather than shown as current.

Seven complications
Energy, stress, recovery, strain, sleep, HRV and resting heart rate — plus a rectangular dashboard.
Check in offline
Six moods saved on the watch and synced once, without duplicating the entry on your phone.
Stale readings are marked
A complication past its expiry says so instead of quietly showing yesterday's number.
04 · PRIVACY

Your health data has nowhere to go

Hupay reads Apple Health, computes on device and stores everything locally. There is no account to create, no server to sign in to, and no analytics SDK watching you use it.

Read the privacy policy
On-device by default
Scores are computed locally. CloudKit sync ships switched off.
Read-only access
Hupay never writes to Apple Health, and you choose what to share.
Export or delete, any time
Take everything with you, or erase all of it, from Settings.
Nothing sold, ever
No advertising, no data brokers, no third-party trackers.
05 · HUPAY PRO

The daily picture is free. Pro adds the long view.

FREE
Everything about today
All four scores, with their evidence
Sleep detail and today's cardio load
Emotion check-in and the one-minute reset
The full Apple Watch app and complications
PRO
History and intensity
Cardio load across every stored day
Minutes in each intensity band per workout
Extended trend ranges

Pricing is being finalised for launch. Beta testers get Pro switched on for the duration of the beta.

Questions

Do I need an Apple Watch?

A watch gives Hupay overnight HRV and sleep, which is what the recovery and stress scores rest on. Without one you still get activity-based scores, marked at lower confidence.

How long until the scores mean something?

Hupay imports up to 60 days on first run, so most people have a usable baseline immediately. Until it matures, every score carries a readiness label saying how far along it is.

Is my data uploaded anywhere?

No. Everything is computed and stored on device, and CloudKit sync ships switched off. There is no Hupay server holding your health history.

Can Hupay tell how I feel?

No, and it does not claim to. Sensors show physiological load; the check-in asks you what you actually feel and stores that alongside.

Is this a medical device?

No. Hupay is a wellness and self-awareness app. It does not diagnose, and it is not a substitute for professional medical advice.

TESTFLIGHT

Try the beta

Hupay is in TestFlight while the scoring is tuned against real weeks of data. Testers get Pro switched on and a direct line for feedback.

Download Hupay on the App StoreDownload Hupay on the App Store
Questions first? Contact support
Requires iOS 17 or later. Apple Watch optional but recommended.