Sanna is now available on Google Play. It turns the health data your Android phone collects into one simple 0–100 score every morning — plus an AI coach and group challenges to keep you accountable.
Your Health in One Number
Sanna pulls steps, sleep, heart rate variability, and resting heart rate and distills it into a single daily score. No manual logging for the basics — just open the app and see where you stand.
AI Coaching That Knows Your Day
Your score powers a personal AI coach that gives advice based on what actually happened — not generic tips. Slept poorly? It adjusts. Hit your step goal early? It pushes you further. The coaching fits your real day, not a template.
Accountability with Friends
Create or join a group, share your daily scores, and compete in challenges. Seeing your friends' scores every morning is the simplest motivation there is. Sanna makes healthy habits a group effort.
Download Sanna
Sanna is free to download on Google Play and the App Store. Your health data stays on your device — processed locally, never uploaded.
Meet Sanna: Fitness and Friends
One daily score, an AI coach, and friends who keep you accountable — private by design. Download Sanna and start today.