What it is
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.
Nosce makes no diagnoses and isn't trying to replace a doctor — it's a place to keep the record and read each result in context.
- • On your device only — one local SQLite file; the developer can't see it
- • Fully offline — no networking code, no account, no sign-in
- • Yours to move — back up and restore as one JSON file
- • No analytics, no ads, no third-party SDKs
- • Open source — GPL-3.0. No Apple platforms, by design
What it tracks
Each metric has a logging form, full history, reference ranges to read a result against, and a best-practices tab. See the screenshots →
Glucose & Ketones
calculated GKI, plus test-timing guidance
Blood Pressure
systolic, diastolic, heart rate
Weight & Height
with a calculated BMI
SpO2 & Pulse
oxygen saturation and pulse rate
Urine pH
logged against its reference band
Fasting
live timer, editable times, stage-by-stage interpretation with cited sources
Askesis
weighted-hike conditioning, scored weekly vs. your recent average
Fasting context
every reading records how long you'd been fasting when you took it