Echo

Echo

Discover which daily habits improve your HRV and recovery

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Echo is a minimalist journal that helps you discover which daily habits are actually improving (or hurting) your HRV and recovery. Connect your daily habits with your wearable data (like Oura, Apple Watch) to uncover what actually improves your stats.
Echo gallery image
Echo gallery image
Free
Launch tags:Health & Fitness•Wearables•Biohacking
Launch Team
Checkmarx Developer Assist for AI IDEs
Security linter for vibe coding: fix vulns as you build
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What do you think? …

Alexandra Nuth
Maker
📌
I’ve been tracking HRV with Oura and Apple Watch for a couple of years, but I always felt like I was guessing what was actually making an impact. So I built Echo — a simple journal that helps connect your daily habits (sauna, sleep, alcohol, cold plunge, etc.) with real changes in your HRV and other metrics. You just log what you did that day, and Echo tracks the trends for you — no spreadsheets or guesswork. It’s in private beta now, and I’d love feedback from other wearable nerds or biohackers. Happy to answer any questions or share what I’ve learned from the data so far!