Best Zero alternatives: apps like Zero-Rush

SunDose!

Optimize your morning light

Free

This app helps you establish a consistent morning sunlight habit to improve sleep, mood, and energy. It offers personalized goals, streak tracking, and educational content, with premium features for advanced health metrics and AI insights.

Ready: HRV & Recovery Tracker

by 8STE LTD

Free

This app analyzes your Apple Watch health data to provide daily readiness scores, helping you understand when to perform or rest. It offers insights into overnight vitals like HRV, resting heart rate, and sleep quality, all while prioritizing user privacy with on-device data storage.

HeartRateHub

Precision Heart Rate Zones

Free

This app helps runners train smarter by utilizing personalized heart rate zones. It integrates with Apple Watch to provide real-time feedback and allows for the creation of custom or pre-set interval workouts for improved endurance and speed.

Arry: HRV & Recovery Tracker

Sleep Score & Daily Readiness

Free

Understand your body's readiness for daily activities and training. Get personalized recommendations for recovery, sleep, and stress management to optimize performance and well-being. Track key health metrics and habits to build sustainable, healthier routines.

BodyEnergy – Body Battery

HRV Energy & Stress Tracker

Free

This app provides a real-time energy score based on your heart rate variability, sleep, and activity. It helps you understand your peak performance times and when you need to prioritize recovery. Integrates with various wearables and processes data locally for enhanced privacy.

Ask Baseline: Health Scanner

Scan & See What Actually Works

Free

Scan packaged foods to receive a personalized health score based on your allergies, diet, and goals. Understand ingredient explanations, nutrition details, and discover healthier alternatives.