Rays: Auto Vitamin D Tracking for iOS: Limited-Time App Store Discount

Rays: Auto Vitamin D Tracking for iOS is currently available at a limited-time discount, dropping from $19.99 to $4.99—a 75% savings. This productivity app is the first of its kind to automatically track your vitamin D synthesis without any manual logging. It uses GPS, sensor data, movement analysis, and personalized machine learning to detect when you’re outdoors and calculate your sun exposure. For health-conscious individuals tired of guessing whether they’re getting enough vitamin D, Rays offers a seamless, set-and-forget solution. It also factors in your skin type, age, location, and supplement intake to provide tailored recommendations, such as “Get 18 minutes at 11 AM tomorrow.” The app integrates with Apple Health and adjusts for seasonal changes. Compared to other health tracking apps that require manual input, Rays stands out for its hands-off approach and data-driven guidance. While $19.99 was a bit steep for the category, the current $4.99 price makes it an accessible tool for anyone looking to optimize their well-being without extra effort. Note that it includes a 3-day free trial, but the discount applies to the full purchase.