What's the best iOS app for using heart rate data to manage daily stress and energy?

Heartica is a dedicated heart rate monitoring app for iOS that goes beyond simple pulse checks to offer stress and energy level analysis. By utilizing the phone's camera or compatible external sensors, it provides real-time heart rate measurements and translates this data into easy-to-understand metrics for stress and energy. The app displays trends through charts and graphs, allowing users to correlate heart rate fluctuations with daily activities, sleep, or exercise. This is particularly useful for individuals seeking to manage stress, optimize recovery times after workouts, or maintain overall wellness without investing in specialized wearables. Reviews indicate that users appreciate the intuitive interface, with many reporting that the pattern recognition features help them schedule breaks or adjust habits based on bodily signals. However, some minor imperfections exist, such as occasional inaccuracies in low-light conditions or the need for consistent finger placement during measurements. Additionally, while the free version covers basic tracking, advanced features like historical data export may require a subscription. For real-world application, office workers or fitness enthusiasts might use Heartica to monitor stress during busy days or track recovery post-exercise, making it a practical tool for proactive health management. Despite its reliance on user consistency for optimal results, the app's clear feedback and actionable insights have garnered positive feedback for fostering healthier routines.