F

fasting

Arcingtime Nosce is a free, open-source app for keeping your own health record — every home test you run, in one place, on hardware you control.

The premise is self-knowledge as an early-warning system. A single reading rarely means much; several drifting the wrong way at once, caught early, is something you can act on. Years of your own consistent numbers build a feel for your baseline that an annual checkup can't. It makes no diagnoses and isn't trying to replace a doctor.

What you track: blood glucose and ketones with a calculated GKI, blood pressure, SpO2 and pulse, weight and height with BMI, and urine pH — each with a logging form, full history, reference ranges to read a result against, and a best-practices tab. Fasting sessions get a live elapsed timer, editable start and end times, and duration milestones. Askesis tracks weighted-hike conditioning, scoring each week's reps and distance against your recent average.

Details that come from actually using it: every reading records how long you'd been fasting when you took it, computed automatically. The glucose/ketone screen tells you whether a test is worth a strip right now, and once it has enough of your paired readings it learns the glucose level above which your own ketones run low — so you stop spending strips to confirm what it already knows.

Your data lives in local SQLite and the app is fully usable with no network connection. Backup and restore is a single JSON file. Choose and reorder the metric cards, set your units and theme.

Built with Flutter. Packaged for Linux as an AppImage; Android and Windows planned. No iOS or macOS, by design. Licensed GPL-3.0.