On-device AI health app

Sleep, stress & recovery in one place.

An on-device AI health advisor that answers from your Apple Health data, plus free sleep tracking, free snore tracking, an apnea-risk screener, alcohol tracker, water intake tracker, cigarette log, quit smoking, life journal, fitness age and body weight. The AI runs on your device. Nothing is sent to a server. No account. No required logging. No backend.

Made in India ♥  ยท  Private by design

On-device AI No account Private by design
Fitness age and body trends in Vityss
Vityss Insights. Trends and healthspan
Free sleep tracking and readiness score in the Vityss Daily Brief
A person asleep in a dim, calm bedroom at night
Free sleep tracking

Nights stay on your device.

Duration, stages and a sleep score from Apple Health. Optional snore tracking if you start a session. Clips never leave the phone.

A quiet night bedroom with a phone on the nightstand
Free snore tracking

Snore sessions stay private.

Loudness is measured on-device during a sleep session you start. Confirmed clips stay on this device and are never uploaded.

A glass of water on a table in soft teal morning light
Water intake tracker

Hydration, on your terms.

A personalised water goal, one-tap glasses, widgets and Apple Watch. Gentle reminders, not a nag.

A single glass of wine on a table at night
Alcohol tracker

See drinks next to sleep and HRV.

Optional logs, weekly limits and quit alcohol timers. Never required. Never shared off your device.

A person breathing fresh morning air at an open window
Quit smoking

A quit streak on this device.

Cigarette and vape logs if you use them, plus a quit smoking flow. See slips next to recovery. Optional. Never required.

A person walking at dawn with a watch on their wrist
Body and fitness

Fitness age from your own baselines.

Fitness age versus calendar age, body weight from Apple Health, mobility and hearing exposure. Honest about what was measured.

A quiet desk with a private journal and a lamp
Life journal

A private journal on this device.

Mood, notes and a calendar of how you felt. Stored only on your phone. Face ID can lock it.

Free sleep tracking, snore tracking, and on-device AI

Start free: sleep tracking, snore tracking, water intake, alcohol, cigarettes, a life journal, fitness age and weight from Apple Health. Ask an on-device AI health coach about your own nights and HRV. Add quit smoking, quit alcohol, fasting and an apnea-risk screener when you want them. Logging is optional. Core scores stay passive. The AI never leaves your phone.

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Daily Brief

A morning readiness score from HRV, sleep and resting heart rate, with one clear thing to do today.

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Body, fitness and weight

Fitness age versus calendar age, body weight from Apple Health, mobility, hearing exposure and longevity trends from your own baselines.

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Insights & Discoveries

Personal patterns with evidence: how alcohol, caffeine, cigarettes or a late night change your HRV and sleep, plus weekly reports and streaks.

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Ask Vityss. On-device AI

A private AI health advisor and AI wellness coach. Ask about sleep, readiness, HRV or habits. Apple on-device models run on your device. Not a cloud chatbot. Health data is not uploaded for AI.

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Water intake tracker

A water intake tracker with a personalised hydration goal, one-tap glasses, widgets and Apple Watch. Gentle reminders, not a nag.

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Free sleep tracking

Free sleep tracking from Apple Health: duration, stages, efficiency and a sleep score. Overnight, on-device, no extra wearable required if Health already has nights.

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Free snore tracking

Free snore tracking during a sleep session you start. Loudness is measured on-device. Snore clips stay on your phone and are never uploaded.

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Apnea tracker

An apnea-risk screener from snoring intensity, Watch breathing disturbances and overnight SpO2. A wellness signal, not a diagnosis.

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Medications

Optional schedule and dose logging with adherence rings and a calendar. Never required, and never shared off your device.

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Life journal

A private life journal for mood, notes and a calendar of how you felt. Stored only on your phone. Face ID can lock it.

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Alcohol tracker

An alcohol tracker for drinks, weekly limits, quit alcohol timers and how drinking shows up in sleep and HRV. Optional. Never required.

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Cigarettes and quit smoking

A cigarette tracker and quit smoking flow, plus vape logs if you use them. See slips next to recovery, and keep the streak on this device.

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Fasting tracker

Optional intermittent fasting (16:8 and more) with stages on your phone. End any time. Not a diet prescription.

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Caffeine tracker

Log coffee and tea, see it against sleep and stress. Writes to Apple Health only if you turn that on.

A look inside

Clean, glanceable, and honest about your data.

Free sleep tracking and daily readiness in Vityss
A daily brief, the moment you wake.
Vityss Insights. Trends, doctor report and healthspan
Patterns and discoveries from your own data.
Body fitness age and weight trends in Vityss
Fitness age and body trends from your Watch.
Life journal and health calendar in Vityss
Life journal: health, mood, drinks and smokes in one calendar.
Vityss Fasting. Start a 16:8 fast
Optional fasting, with stages on your phone.
Quit alcohol and quit smoking recovery tracker in Vityss
Quit alcohol or quit smoking, tied to your own HRV.

Private on-device AI. Not a cloud chatbot.

Most AI health apps send prompts to a cloud. Vityss Ask is an on-device AI health advisor and AI wellness coach. It uses Apple Foundation Models on your device, grounded in your Apple Health and logs. No account for AI. No prompt history on our servers. We have no servers for your health. Unlimited Ask conversations are part of Vityss Pro. Wellness insights only, not medical advice.

Private by design

Vityss reads Apple Health read-only and computes your scores on your device and Apple Watch. Your health data, audio and location never leave your device. The only thing sent off-device is optional, anonymised crash and usage diagnostics. Never your health data, name, scores, audio or location.

Vityss offers wellness insights, not medical advice. Its scores are not a diagnosis and should not be treated as final. Always consult a doctor about your health.

Free to start. Pro from $0.99 a month.

Daily Brief, last night's sleep and optional logging stay free. Vityss Pro unlocks the deep end. Price is shown in your App Store currency before you pay.

Free

$0
  • Daily Brief and today's readiness
  • Last night's sleep from Apple Health
  • Optional water, alcohol and cigarette logs
  • 7 days of vitals
  • 3 on-device AI Ask messages a day
  • On-device and private. No account

Vityss Pro

$0.99 / month
  • Unlimited on-device AI health advisor
  • Insights, patterns and 30-day trends
  • Fitness Age and the metrics that move it
  • Snore sessions, clips and apnea-risk screener
  • Alcohol, caffeine and cigarette trends, limits and quit streaks
  • Life journal with lock and export
  • Doctor report PDF, weekly recap and data export
  • Widgets and optional iCloud backup

Download Vityss on the App Store

The live listing is Vityss โ€” Sleep, Stress & HRV. An Apple Watch unlocks the full Daily Brief. Phone-only still works for logging, journal and many insights.

https://apps.apple.com/gb/app/vityss-sleep-stress-hrv/id6803214165