Brain healing, made measurable.

Objective visibility into cognitive recovery through clinically meaningful brainwave data.

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Man holding circl headset sitting in chair

Diagnosis happens quickly. Healing takes years.

Too often progress is invisible.

Solving brain healing

Measure cognitive recovery through brainwave-based assessments that deliver objective, clinically meaningful insight.

Powered by P300 — a stable, validated neurophysiological marker that brings visibility to healing progress over time.

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Wearable Circl brain device with smartphone app displaying brain performance metrics.

Clinical neuroscience, designed for real-world use

Circl translates validated neuroscience from the lab into practical, repeatable assessments that can be used consistently across real-world recovery settings.

How it works

Brain recovery is dynamic. Circl provides objective insight into how cognitive function changes over time.

Circl uses research-backed brainwave data to assess how the brain processes information — supporting clearer understanding of recovery trajectories.

Person sitting on a chair using a tablet paired with Circl headset.

Take the test. Establish a baseline.

Complete a brief, 10-minute assessment in the Circl app to measure cognitive performance using brainwave data.

Track changes over time

Monitor cognitive performance longitudinally to identify trends and patterns in recovery.

Support clearer documentation of progress across therapies and rehabilitation phases.

Understand what’s changing

View core cognitive metrics — brain power, brain speed, alertness, focus, and memory — to understand which aspects of brain function are changing over time.

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