Best apps like Rays: Auto Vitamin D Tracking

My Endorphin

by Endorphin

Free

Easily plan and schedule fitness classes directly from your mobile device. View class schedules, sign up for sessions, and access studio location details. Optimize your time and enjoy the convenience of managing your fitness activities on the go.

HeartBreath HRV

Time for slow breathing

$8.99

This app uses your phone's camera to measure heart rate variability through guided slow breathing exercises. It provides biofeedback to help you train your autonomic nervous system for rest and relaxation. Track your progress and optimize your breathing for better well-being.

SunSeek: Sunlight & Vitamin D

Sun Exposure & Vitamin D

Free

Optimize your circadian rhythm and vitamin D production with personalized sunlight exposure guidance. Track real-time lux levels, receive tailored outdoor time recommendations, and use the sun compass to maximize your daily light intake for improved sleep, mood, and overall well-being.

Calorie Tracker & Gym: Muscles

Fitness, Workout, Protein

Free

Track your gym workouts and plan your meals with this comprehensive fitness companion. Log exercises, monitor progress, and manage dietary goals with a built-in calorie and macro counter. Achieve your fitness aspirations by defining personalized plans and adjusting your approach with real-time data.

UV Index, Vitamin D & Sunburn

Tanning, SPF & sun tracker

Free

Optimize your sun exposure for vitamin D production and safe tanning. This app calculates optimal sun times based on your skin type, helping you maximize vitamin D while preventing sunburn with personalized protocols and smart alerts.