RHRSpark vs Longevity Arc

RHRSpark puts resting heart rate on your Apple Watch face as a sparkline, gauge, or corner complication. WHAT YOU GET • Three 24-hour complications you can use for free • 10 complications across 8-hour, 24-hour, 7-day, and 30-day windows with Pro • Short-term sedentary heart-rate samples and Apple's daily resting heart rate • Clear calculation notes for every complication TWO DATA SOURCES, SHOWN CLEARLY The 8-hour and 24-hour views use heart-rate samples that HealthKit labels as sedentary. The 7-day and 30-day views use Apple's daily resting heart-rate values. Gaps stay visible when there is no qualifying sample. BUILT FOR THE WATCH FACE Choose rectangular, circular, or corner complications. Each one keeps the source and time window clear so you know what you are viewing. ONE-TIME PRO UNLOCK Download free and use three 24-hour complications. Unlock all 10 complications for $0.99 once. No subscription, account, ads, or telemetry. PAIR IT WITH HRVSpark HRVSpark gives the same direct view of raw SDNN heart rate variability across useful time windows. HealthKit data stays on your devices and moves only between your paired iPhone and Apple Watch through Apple frameworks. RHRSpark may request a small configuration file from filamentlabs.io to display current product messages. The request contains no HealthKit data. RHRSpark is for informational purposes only. It does not provide medical advice or diagnose, treat, cure, or prevent any medical condition.

Longevity Arc turns your Apple Health data into five clear longevity signals. Instead of digging through scattered charts, you can see HRV, fitness, sleep, gait, and cardiac load together in one simple dashboard designed to help you understand how your body is trending over time. Built for people who care about healthspan, recovery, and long-term performance, Longevity Arc helps you spot changes faster and focus on the metrics that matter most. The app is designed to feel simple at a glance while still giving you useful depth when you want to explore trends and patterns. What you can do in Longevity Arc: - Track five science-inspired longevity signals from Apple Health in one place. - Review your HRV, sleep, fitness, gait, and cardiac-load trends without jumping between different screens. - Get a clearer picture of how daily habits may affect your long-term trajectory. - Use a private, HealthKit-powered experience built around your own data. Why people use Longevity Arc: - Apple Health already contains valuable signals, but they are often fragmented and hard to interpret quickly. - Longevity Arc brings those signals together into a more readable view so you can check your status in seconds. - The focus is not noise or endless scores - it is a cleaner way to monitor meaningful change over time. Privacy and data: - Longevity Arc works with your Apple Health data. - You stay focused on your own signals, trends, and progress. Ideal for: - Biohackers tracking recovery and resilience. - Health-conscious users who want a simpler Apple Health dashboard. - Founders, athletes, and everyday users trying to balance stress, fitness, and sleep over time. Privacy Policy: https://longevityarc.app/privacy Terms of Use: https://longevityarc.app/terms