The AI coach that reverses your biological age

Meet Sar, your pocket fitness coach. Science-backed training plans, AI meal tracking, and daily check-ins — all tied to one number: how old your body really is.

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Privacy-first Science-backed Syncs Apple Health
Sarvita Move tab — weekly training progress

Biological age

31.5 yrs

Sar — your AI coach chat in Sarvita

Meet your pocket coach

Sar knows the science of longevity and turns it into a plan you can actually follow. Personal guidance, honest feedback — never generic advice.

Weekly plans

Built on the four pillars and adapted as you get stronger.

Daily check-ins

Feedback on meals, workouts and progress — up to 3× a day.

Nutrition reports

Weekly patterns, protein tracking and what to change next.

The science of living longer

Five pillars. One younger you.

Sarvita trains the five things that actually move your biological age — grounded in peer-reviewed longevity research.

A younger
you lower biological age
Sar the coach eating a balanced plate

Nutrition

Protein-first fuel for healthy aging.

Sar the coach running

Zone 2 Cardio

Builds your aerobic base and metabolic health.

Sar the coach lifting a dumbbell

Strength

Preserves muscle mass and bone density.

Sar the coach in a yoga pose

Mobility

Range of motion that keeps you moving freely.

Sar the coach sleeping

Sleep

Deep recovery that repairs body and brain.

See it in action

Less clutter. More clarity.

Every screen shows the data you need — and nothing you don't.

Sarvita Fuel screen

Fuel

AI meal tracking

Sarvita Progress screen

Progress

Biological age

Sarvita Path screen

Path

The path to 100

Sarvita Snap screen

Snap

Photo or text logging

Privacy-first by design

Your data stays yours

Health data never leaves your device. Coach interactions are processed and immediately forgotten. Everything syncs through your personal iCloud.

On-device

Health data from Apple Health stays on your iPhone.

Your iCloud

All app data syncs through your personal iCloud account.

No AI training

Your data is never used to train AI models.

Read full privacy policy →

Start your longevity journey

Download Sarvita and let Sar turn your Apple Health data into a plan that makes you measurably younger.

Download Sarvita free

Available on iOS. Requires iPhone with Apple Health.

Frequently asked questions

What is biological age and how does Sarvita calculate it?

Biological age reflects how old your body really is based on fitness and health markers. Sarvita calculates it from three components: VO2 Max Age (the strongest predictor of longevity), HRV Age (nervous system resilience), and Body Composition Age, using age-percentile reference tables from population studies.

Can you actually reverse your biological age?

Yes. VO2 Max, heart rate variability, and body composition are all trainable metrics. Research shows that consistent exercise — particularly Zone 2 cardio, strength training, and VO2 Max intervals — can measurably improve these markers, effectively lowering your biological age over time.

What are the four pillars of longevity training?

Zone 2 Cardio (aerobic base and fat metabolism), Strength Training (muscle and bone density), VO2 Max Training (the strongest mortality predictor per JAMA 2018), and Stability Work (fall prevention and mobility). Sar builds personalized weekly plans across all four pillars, adapting to your current fitness level. As you get stronger, your plans evolve — adding volume, intensity, or new focus areas so you're always progressing, not plateauing.

Is my health data private with Sarvita?

Yes. Health data from Apple Health stays on your device and is never uploaded to any server. AI coaching queries are processed and immediately discarded. All app data syncs through your personal iCloud account. Your data is never used to train AI models.

How does AI meal tracking work?

Snap a photo of your meal or describe what you ate in text. Sarvita's AI analyzes it and provides an instant macro breakdown (calories, protein, carbs, fat). Weekly nutrition reports show patterns and give actionable suggestions based on your eating habits and goals.

How is Sarvita different from other apps?

Most health apps focus on one thing — calorie counting, step tracking, or data collection. Sarvita is built as a complete longevity tool: it combines AI coaching across training, nutrition, and recovery — all tied to one metric, your biological age. Instead of just collecting data, Sarvita tells you what to do with it. See how we compare →