Meet Sar, your personal AI fitness coach. Get science-backed training plans, nutrition insights, and daily check-ins tailored to your longevity goals.
Sar is a friendly AI fitness coach who knows the science of longevity. Get personalized guidance, not generic advice.
Sar creates personalized weekly plans based on the 4 pillars of longevity: Zone 2 cardio, strength, VO2 max, and stability.
Check in with Sar up to 3 times a day. Get feedback on your meals, workouts, and progress toward your goals.
Weekly nutrition analysis with meal patterns, protein tracking, and actionable suggestions based on your eating habits.
Sarvita tracks the four pillars of longevity training, based on longevity science and peer-reviewed research.
3-4 sessions weekly at 45-90 minutes
Builds your aerobic base and metabolic health. The foundation of longevity fitness.
2-3 sessions weekly at 45-60 minutes
Preserves muscle mass and bone density. Essential for aging well.
1 session weekly at 20-30 minutes
The strongest predictor of longevity. High intensity intervals that matter.
60 minutes total per week
Prevents falls and maintains range of motion. Often neglected but crucial.
Clean design. Powerful insights. Zero clutter.
Your AI coach
Move
Fuel
Health data never leaves your device. Coach interactions are processed and immediately forgotten. Everything syncs via your personal iCloud account.
Health data from Apple Health stays on your iPhone.
All app data syncs via your personal iCloud account.
Your data is never used to train AI models.
Join thousands building healthier, longer lives with Sar as their guide.
Download Sarvita FreeAvailable on iOS. Requires iPhone with Apple Health.
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.
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.
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.
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.
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.
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 →