Interpreting adaptive physiological dynamics in real time through structured variability modeling. A physiological regulation app delivering real-time autonomic insight through short guided sessions.
Stop guessing recovery — measure physiological tolerance instead.
Trend, recovery and coherence without noise.
PHYSIOLOGICAL COMPUTING FOR NEXT ERA
View MethodologyBuilt for Apple Watch as the primary signal layer. Optional high-resolution chest straps enable finer individual calibration and enhanced respiratory precision.
Coherence does not display isolated metrics. It models dynamic relationships between stability, variability and recovery. Coherence is built around a proprietary physiological index — ITFD (Dynamic Physiological Tolerance Index). It models dynamic relationships between stability, variability and recovery. It does not diagnose disease. It evaluates regulatory structure.
Observe how your system regulates under physical and cognitive load.
Start a session, hold a base while the app stabilizes the signal.
Trend matters more than isolated values.
Follow the on-screen guided breathing to apply a controlled autonomic stimulus.
A non-clinical index summarizing adaptive behavior.
At the end, you receive your session readout and its position within your ongoing trend.
Individuals focused on performance, recovery and cognitive clarity use Coherence to understand adaptive trends.
"Finally a reading that shows trend instead of just spikes."
"Short sessions help me return to stability when I feel reactive."
"I understand how my previous day impacts my night."
"Clear metrics. Clear boundaries. No unnecessary data."
"Finally a reading that shows trend instead of just spikes."
"Short sessions help me return to stability when I feel reactive."
"I understand how my previous day impacts my night."
"Clear metrics. Clear boundaries. No unnecessary data."
"It is not another HRV app. It is structured interpretation."
"It helps me decide whether to push or recover."
"Small sessions, meaningful trend insight."
"Minimal interface, deep signal."
"It is not another HRV app. It is structured interpretation."
"It helps me decide whether to push or recover."
"Small sessions, meaningful trend insight."
"Minimal interface, deep signal."
Coherence converts autonomic signals into a structured adaptive index designed for clarity and decision-making, using controlled breathing to modulate autonomic response and evaluate tolerance, regulatory cost and recovery integrity in real time.
Through algorithmically detected respiratory modulation, Coherence applies minimal physiological load to reveal adaptive structure in real time.
A dynamic tolerance index reflecting adaptive behavior.
Understanding regulation without alarmism.
Observe return-to-baseline dynamics.
Long-term patterns matter more than daily spikes.
Start personal and scale when needed.
For individual adaptive monitoring.
Extended trend analysis and export tools.
For structured group monitoring projects.
Plans evolving. Details coming soon.
Coherence is a non-clinical adaptive interpretation app focused on trend and regulation.
ITFD (Dynamic Physiological Tolerance Index) is a structured physiological index that models dynamic relationships between autonomic stability, variability and recovery over time. It is designed to estimate adaptive tolerance and detect early loss of regulatory capacity.
No. Coherence is a non-clinical adaptive interpretation tool. It does not diagnose disease or replace medical evaluation.
It analyzes autonomic variability signals — including heart rate variability patterns — and their temporal dynamics under load and recovery. The focus is not isolated values, but structural change over time.
The base version of Coherence does not collect or transmit personal data. All signals remain within Apple Health. A Pro version is under development consideration and would depend on user demand. Any future data layer would be fully anonymized and strictly opt-in.
Coherence does not impose fixed breathing techniques. It detects and dynamically adjusts respiratory cadence to observe how the autonomic system reorganizes under minimal structured input.
Coherence is designed to work with Apple Watch as its primary sensor layer.
Android support is planned on the roadmap, including Pixel Watch and Samsung Galaxy Watch devices.
The system has been tested with high-resolution chest strap sensors including Movesense (used as a reference-grade signal source) and Polar H10, one of the most widely available and reliable consumer chest straps.
Chest straps are optional and enable finer individual calibration, particularly for respiratory modeling and signal precision.
Coherence is built on a structured autonomic modeling framework. A detailed technical overview will be made available as the platform evolves.
Learn MoreStart with short sessions and observe adaptive trend, coherence and recovery. Now available on the App Store.