RUNA - Simple Run

No watch. No chest strap. Just your iPhone camera. RUNA turns your iPhone into a smart treadmill companion. Simply prop your phone up, point the camera at yourself, and let our AI do the rest — measuring your heart rate in real time without any wearable device. How It Works Place your iPhone on the treadmill or nearby. RUNA's camera-based AI detects your heart rate while you run — completely hands-free, completely device-free. Set Goals, Crush Them Set your target distance, time, or pace. RUNA tracks your progress and keeps you on course every session. Know Your Zone See exactly which pace and heart rate zone you're in during your run. Push harder or pull back — train smarter with real-time zone insights. Look Back, Level Up Every run is saved automatically. Review your history, spot trends, and watch yourself improve over time. Your Data Stays Yours All data is processed and stored entirely on your device. Nothing leaves your phone — ever. No cloud uploads, no third-party sharing, no exceptions. Stop strapping on extra gear. Start running with just your iPhone.