Windows install
Install Sarenica on Windows.
Free install from Microsoft Store. Capture a local baseline, then ask Hydrogen to compare real changes.
Microsoft Store verified Windows 10 & 11 Local-first 14-day trial
After install
What it costs
Free install · 14-day trial · Plus Lifetime is a one-time unlock, no subscription.
01
Get from Microsoft Store
One click install. No extra accounts needed to start.
02
Capture a local baseline
Work normally for 2-3 days while Sarenica tracks on Windows.
03
Ask Hydrogen to compare
Return to the web workspace for period-over-period analysis.
Installation & setup FAQ
Short answers to the most common first-run questions.
Related guides
Shortest path to better setup and better questions after install.
Fatigue Tracking for Knowledge Workers
Track fatigue patterns during desk work, reduce noisy conclusions, and build a reliable baseline.
Read guide
Desktop Fatigue Tracking (Privacy-First)
How to track fatigue on your desktop while preserving privacy, local control, and explicit sync choices.
Read guide
Compare Work Patterns Week Over Week
A week-over-week comparison workflow for work sessions, active minutes, and fatigue using stable baselines.
Read guide
After install
Return when the baseline is ready
Open the workspace after setup, ask comparison-driven questions, and use the guides when needed.