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Stamina Bar Workout

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Stamina Bar Workout

As a passionate runner and Apple Watch developer, I wanted to use my background in Computer Science to explore how health data could improve performance. Training for a 50-mile ultramarathon pushed me to find better ways to balance exertion and recovery, and that journey led to Stamina Bar. By simplifying complex heart rate and recovery metrics into an intuitive stamina bar, the app helps users of all fitness levels train smarter and feel more in control of their health. Now, my mission is to grow this tool into something effective and engaging, offering smart insights that feel familiar and seamlessly integrate with the first-party apps people already rely on. Above all, I want to help users connect with their health in a way that’s empowering—not obsessive—so they can leverage their data to improve, not overanalyze.

Ready to take control of your fitness? Download Stamina Bar Pro today and visit staminabar.app for more information.

Join me at the upcoming Rock ‘n’ Roll Marathons in Nashville and San Diego this year—let’s push limits, track progress, and make every mile count.
Developer
Zachary Ellis