Chronic Trace
Know your baseline
About
This app uses your phone's camera to measure involuntary signals like eye movement, balance, focus, and reaction time. It combines these into a personal wellness index, tracking subtle changes against your own baseline over time. No extra hardware is needed, just your smartphone.
What's New in Chronic Trace
1.3.0
August 3, 2026
Accuracy improvements, plus performance and stability updates.
Subscription plans
Chronic Trace Monthly
Brain-health wellness screening, tracked over time.
FAQ
What does Chronic Trace measure?
Chronic Trace measures involuntary signals that are hard to fake, including eye movement, balance, focus, and reaction speed. These are combined into a personal wellness index.
How does Chronic Trace work?
You add yourself or anyone you track, capture a baseline when you feel well, and then re-check anytime to see your results against that baseline. It uses your phone's camera and no extra hardware.
Is Chronic Trace a medical device?
No, Chronic Trace is a wellness self-tracking tool, not a medical device. It does not diagnose, treat, cure, or prevent any condition. Always consult a physician for medical advice.
What are the subscription costs for Chronic Trace?
Chronic Trace requires a paid subscription. Plans are $14.99 per month or $149.99 per year. Payment is charged to your Apple Account at confirmation of purchase.
Can I cancel my Chronic Trace subscription?
Yes, your subscription renews automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel anytime in your Apple Account settings.
Is my data private with Chronic Trace?
Yes, Chronic Trace is designed to be private. Sessions can be tracked fully anonymized, and your data is yours.
What devices does Chronic Trace support?
Chronic Trace is supported on iPhone, iPad, and iPod. It requires iOS 12.0 or later.
How often is Chronic Trace updated?
The latest version is 1.2.2, last updated on June 20, 2026. Updates typically include performance improvements and new features.