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activation

Setup

Install, configure, and build a cleaner tracking baseline.

1 postsAudience intent: activation
Aug 16, 2026 · 5 min read

Your phone already knows enough to start

Screen time, which apps eat your evening, and — if you have a wearable paired — your sleep and heart-rate variability. That is already enough for Sarenica to notice a real pattern and tell you how sure it is. No new hardware, no manual logging.

Your phone alone — screen time and app use — is enough for a first honest finding.
Health Connect adds sleep, HRV, resting heart rate, and steps with no second account.
A wearable does not unlock the product; it sharpens findings you can already get.
Everything is computed and signed on your device. Raw data stays on your phone unless you turn on sharing.
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Track. Integrate. Observe. Analyze.

Local-first fatigue and focus tracking for Windows, with optional wearable context and Hydrogen analysis when your baseline is ready.

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