SPARK ENGINE · DUAL-RATE EMA · BEAT-TO-BEAT
Bear Sense pairs with a Polar chest strap to monitor your breathing patterns overnight — learning your baseline, watching for drift, no wires, no sleep lab.
Bear Sense learns your normal pattern first — then watches for when your system works harder than it should.
Clip on your Polar chest strap before bed. Bear Sense connects automatically over Bluetooth.
The app runs silently in the background all night. Screen off, phone on the nightstand.
Your normal breathing rhythm is unique to you. Bear Sense builds a personal baseline — no population averages.
See how your night went: restful periods, elevated events, and trends over time.
The app speaks in states, not statistics. Researchers and family members can toggle dev mode to see the underlying data.
Your system is in balance. Rhythm is smooth and self-correcting.
Your body is adjusting. Common during light sleep transitions.
Coordination is narrowing. Worth watching if it persists.
Extended period of compressed rhythm. Review the morning summary.
Every registered volunteer's beat data is logged server-side with full metrics. Access the live researcher dashboard to watch sessions in real time.
Both run the SPARK framework on your Android device — no subscription, no cloud dependency.
Pairs with a Polar chest strap to monitor breathing patterns overnight. Beat-to-beat HRV analysis using dual-rate EMA. No hardcoded thresholds — learns your baseline.
Live weather map with SPARK atmospheric overlay. Fetches HRRR CAPE/CIN data for your region and shows where conditions favor tornado formation using φ = |CIN|/(|CIN|+CAPE).
Bear Sense for sleep · BearNADO for storms. Both powered by the SPARK engine.