Meet your twin.
Understand your energy low.
A living digital model of you that informs on your deficiencies indicators, like sleep, recovery, hydration, nutrition, digestion and mood status — every single minute.
14 days free, then cancel anytime — no commitment.
Powered by your daily data.
Compatible
Up and running in 3 minutes.
Download & Build Your Twin
Download PREV8 free. Take a selfie, customise your twin's appearance, and it's ready to track.
Connect or Just Talk
Plug in your Apple Health, WHOOP, Oura or Garmin — or skip all that and log meals, water and supplements by voice.
Wake Up to Your Score
Every morning, one Energy Score tells you exactly how recovered you are and what your body needs today.
Your Energy Twin breathes, glows and shifts colour with your score — a calm, instant read on how you’re really doing.
86
Energy score
6
Live systems
24/7
Always synced
100%
Private to you
Human performance. Measured daily.
One score, every morning. See exactly how recovered you are before you decide how hard to push.
- A single recovery score, computed from last night.
- Sleep, HRV and resting heart rate, in plain language.
- Weight, water and streaks tracked effortlessly.
Instead of typing. Just talk.
Log water, supplements, meals and how you feel — out loud. Prev8 understands and files it instantly.
- “Logged 500ml of water” — done.
- Supplements and meals, captured hands-free.
- A quick check-in on mood and energy.
Listening
Just say it
“Logged 500ml of water and my magnesium.”
Scan meals. Log instantly.
Point your camera at a plate. Prev8 recognises the food and logs calories, protein and a quality score in seconds.
- AI food recognition — no manual entry.
- Calories and macros estimated automatically.
All your data. One place.
Prev8 connects through apple health to the tools you already wear and trust, then quietly brings everything together into your twin.
The workspace for energy performance.
Choose how deep you go. Start free with the app, layer in at-home biomarker testing, and connect the trackers you already wear — every signal flows into one twin.
The app
Download Prev8 and start tracking your Energy Twin straight away. Free to begin — no hardware needed.
Urine + saliva kit
The Professional Testing Kit — pH, conductivity, nitrate and refractometer meters plus reagent strips — to measure real biomarkers at home and feed them straight into your twin.
Connect your devices
Bring the watch, band or ring you already wear. Sleep and fitness data — plus your pH strips — sync automatically into Prev8.
Watch · Band · Ring · pH strips
The twin that changed how they train.
“I've had a WHOOP for two years. PREV8 is the first thing that actually explains what my data means. The morning score changed how I train completely.”
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“The voice logging alone is worth it. I used to skip tracking because it took too long. Now I just say it out loud while I'm making coffee.”
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“My naturopath loves the PDF reports. She said it's the most complete picture of a patient's health she's ever seen walk through the door.”
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Your twin.
Made to look like you.
Take a few photos, customise your appearance, and build a digital twin that feels personal from day one.
Start with a selfieWe use it to create a realistic twin just for you.Style it your way
Find your look
Express yourself
Match your vibe
Show your lifestyle
Realistic & Recognisable
Built to look like you, so it feels personal.
Fully Customisable
Fine-tune your features, style and preferences.
Private & Secure
Your photos are private and never shared.
Your Health Companion
Your twin evolves with you as you progress.
Your data. Your twin. Your journey.
Your health on the road. Safely in view.
A calm, glanceable dashboard for the car. Your longevity score and key stats — designed to be read in a second, never a distraction.
Built around you. And those you love.
Add the people who matter and keep everyone’s essentials in one calm view — sleep, energy, hydration, recovery, biomarkers and mood.
Live better. For longer.
A long-game score that rewards consistency. Watch your daily progress trend upward as healthy habits compound.
0
Longevity score
0d
Best streak
Insights
The bigger picture.
All in context.
Sleep
7h 58m
Good
Activity
8,432
Good
Nutrition
82%
Balanced
Recovery
92%
Optimal
What it means
Great balance this week — sleep and recovery are supporting your activity.
Your health data.
Yours alone.
- Private by default. Your data is encrypted and tied to you — not shared by default.
- Never sold. We don’t sell your health information. Ever.
- You’re in control. Connect, disconnect and delete anything, anytime.
Meet the twin that
knows you best.
Start understanding yourself today. Free to download.