Join the closed beta
ZNTNT

You're aging at a rate
you can change.

ZNTNT calculates your biological aging rate from your daily behaviours: sleep, recovery, movement, and stress. Log once a day. Watch your aging rate move.

Join the closed beta
Today's Score
Daily update · Jun 5
Z
Longevity Score
724
0.94× aging 6% slower than expected
Recovery 78%
Metabolic 65%
Activity 71%
Resilience 60%
Daily
Aging Rate Updated
Every check-in moves your score
4
Sub-scores
Recovery · Metabolic · Activity · Resilience
100%
Private by Design
Your data is yours. Always.
The Engine

One score. One number that changes everything.

Your Longevity Score is calculated daily from four sub-scores: Recovery, Metabolic, Activity, and Resilience. Together they determine one thing: how fast you're aging. And whether that's changing.

Recovery (35%)

Sleep hours, bedtime consistency, HRV, & RHR. The highest-weighted sub-score because recovery is where aging rate moves fastest.

Metabolic (25%)

Meal quality, eating regularity, and what you consume. The inputs your cells use to repair themselves overnight.

Activity (25%) + Resilience (15%)

Movement intensity and duration. Stress management. The behaviours that compound over time into a measurably younger biology.

Key Metrics

Everything your body tells you

Track the metrics that actually matter. Log once a day and ZNTNT builds your picture over time.

Sleep Hours
Duration logged against your personal sleep target
Resting Heart Rate
Baseline cardiovascular health. Lower is usually better
HRV
Heart rate variability: your body's recovery and stress signal
Stress Level
Daily self-reported stress score from low to high
Exercise Time
Minutes of active movement, of any type and intensity
Exercise Type
Cardio, strength, flexibility, sport, or custom
Meal Window
Eating window hours for metabolic health and fasting tracking
Alcohol Units
Weekly alcohol consumption tracked with awareness, never judgement
Daily Streaks
Consecutive days of logging, your habit chain visualised
Achievement Badges
Unlocked when you hit real milestones, protocol completions, and more
Weekly Insights
Automated trend summaries, what moved, what stalled, what to focus on
Join the closed beta
Today's check-in
Check-in complete
7.2h
Sleep
64
Resting HR
Aging Rate Delta
−0.03×
Aging rate dropped after today's check-in
Zen Insight
Consistent sleep timing drives more aging rate improvement than sleep duration alone.
14-day streak
Personal best, keep it going!
The Sport

Longevity is a sport.
You are an athlete.

ZNTNT tracks your biological aging rate like a performance score. Log your behaviours once a day. Follow protocols designed by longevity experts. Compete in challenges with people you know. Every check-in is a training session. Every delta is a result. This isn't wellness, it's performance.

Your Aging Rate
Calculated daily. Expressed as a multiplier. 0.94× means you're aging 6% slower than expected.
Your Circle
Share your Longevity Score with people you know. Compete on improvement, not starting point.
How It Works

Three steps to a lower aging rate

01

Connect and calibrate

Tell the engine your baseline. Connect your wearable or log manually. Two minutes. The engine sets your starting aging rate.

02

Check in once a day

Sleep, recovery, movement, stress. Thirty seconds. The engine recalculates your aging rate every time you log.

03

Watch your aging rate drop

Follow protocols. Join challenges with your Circle. See your aging rate move in the data, not a feeling, a number.

The Science

Your aging rate is real.
We built the engine to prove it.

Biological aging is not fixed. Research from Harvard T.H. Chan School of Public Health and ETH Zurich has shown that sleep consistency, circadian rhythm stability, and daily behavioural patterns are measurable predictors of how fast your biology ages, independent of your chronological age.

Zentient's engine translates that research into a single daily number: your aging rate. Log your behaviours. The engine tells you if they're moving the number in the right direction.

No guesswork. No vanity metrics. Just the data that actually predicts how long you'll live well.

Aging Rate
Last 30 Days
Trending ↓
1.10× baseline: 1.00×
Day 1 Day 30
↓ 0.17× improvement
30-day trend
Our Values

Built on four principles

01

Clarity

One number. Your aging rate. Four sub-scores that explain it. We don't show you data you can't act on.

02

Consistency

Biological aging responds to consistent behaviour, not intense bursts. We built the engine to reward the long game.

03

Privacy

Your aging rate is yours. Your sub-scores are yours. We collect only what the engine needs and never share it.

04

Honesty

If your aging rate is going up, we tell you. If a protocol isn't working for you, the data shows it. We don't soften the numbers.

Get in touch

We'd love to hear from you

Questions, feedback, or beta access requests? Drop us a note. We read every message.

Send us a message

Fill out the form, it lands in our inbox, not a black hole.

Other ways to reach us

Pick whichever channel fits your question.

Phone & WhatsApp

+593 98 474 0221

E-mail

support@zntnt.com

We respond within 2 business days

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Your aging rate is moving right now.

Find out which direction. Join the ZNTNT closed beta, limited to 150 founding members.

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