Filament Labs

A window, not a verdict.

Privacy-first tools for the curious.

Projects

HRVSpark icon

hrv/spark

Your HRV. Raw. Beautiful. On your wrist. A complication-first HRV dashboard for Apple Watch and iPhone.

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About

Filament Labs is the independent work of a solo developer, building tools that respect your data and trust your intelligence.

No analytics. No telemetry. No interpretation layers. Just clean, honest software that shows you what's happening and lets you decide what it means.