Privacy Policy

Your data never leaves your wrist. This Privacy Policy explains how Kairos, operated by Neuralway Technologies Private Limited ("Neuralway", "we", "us", "our"), handles your information. The short version: Kairos computes everything on your iPhone and Apple Watch, there is no account to create, and we do not collect, transmit, sell, or store your health data on any server.

1. On-Device by Design

Every reading, score, baseline, and verdict that Kairos produces is calculated locally on your device. Your health and fitness data — including heart-rate variability, resting heart rate, sleep, breathing rate, and wrist temperature — is read from Apple HealthKit with your explicit permission and is processed entirely on-device. It is not uploaded to Neuralway, is not synced to a cloud we operate, and is never sent to any third party. There is nothing for us to leak, because nothing is ever sent.

2. Health Data and Apple HealthKit

Kairos requests read access to specific HealthKit data types solely to generate your recovery insights. You control exactly which data types Kairos may read, and you can grant or revoke this access at any time in the Apple Health app or in iOS Settings. In accordance with Apple's requirements, Kairos does not use HealthKit data for advertising, marketing, or other use-based data mining, and does not share HealthKit data with any third party. Data obtained through HealthKit remains on your device.

3. Information We Do and Do Not Collect

We do not collect your name, email address, or health data in order to run Kairos, because the app requires no account and performs its work on-device.

We may receive limited, privacy-preserving information that we do not control directly:

• App Store & subscriptions: When you purchase or manage a subscription, Apple processes the transaction and provides us with aggregate, anonymized sales and subscription reports. We do not receive your payment card details.
• Diagnostics (optional): If you opt in to share crash logs and analytics through Apple, Apple may provide us with aggregated, anonymized diagnostic data to help us fix bugs and improve stability. This contains no health data and does not identify you.
• Support correspondence: If you contact us by email, we receive the information you choose to include in your message.

4. How We Use Information

Any limited information we receive is used only to operate and improve Kairos — for example, to understand aggregate adoption, diagnose crashes, respond to your support requests, and meet our legal and tax obligations. We do not build advertising profiles, and we do not sell, rent, or trade your information.

5. Security

Because your health data stays on your device, it is protected by the security of iOS and watchOS, including device encryption and the protections Apple provides for HealthKit data. For the limited correspondence and business records we do hold, we employ industry-standard safeguards including encryption in transit, access controls, and secure infrastructure to protect against unauthorized access, alteration, or destruction.

6. Disclosure of Information

We will not share your information without your consent, except in the following limited circumstances:

• To comply with legal obligations, court orders, or lawful governmental requests;
• With service providers acting on our behalf (such as Apple for app distribution and payments) who are bound by privacy obligations consistent with this policy;
• To protect the rights, property, or safety of Neuralway, our users, or the public, as permitted by law.

7. Data Retention

Your on-device data is retained on your device for as long as you keep Kairos installed and is removed by you at any time — uninstalling the app or revoking HealthKit access removes Kairos's access to it. We retain only the limited business records (such as anonymized purchase reports and support emails) for as long as necessary to provide our services, comply with our legal and tax obligations, resolve disputes, and enforce our agreements.

8. Children's Privacy

Kairos is not directed to children under the age of 13 (or the equivalent minimum age in your jurisdiction), and we do not knowingly collect personal information from children. If you believe a child has provided us information, please contact us so we can address it.

9. Your Rights and Choices

You are in control of your data. You can grant or revoke Kairos's access to HealthKit at any time, delete the app to remove its access to your on-device data, and disable diagnostics sharing through your device settings. Depending on your jurisdiction, you may have rights to access, correct, or delete the limited personal information we hold; to exercise these, please contact us using the details below.

10. International Users

Neuralway Technologies Private Limited is based in Bengaluru, India. Because Kairos processes your health data on your own device, that data is not transferred internationally by us. Any limited business records we hold may be processed in India and other jurisdictions where our service providers operate, subject to appropriate safeguards.

11. Changes to this Policy

We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated effective date and, where the changes are material, communicated within the Kairos application. Your continued use of Kairos after an update constitutes acceptance of the revised policy.

12. Your Consent

By using Kairos, you consent to the handling of information as described in this Privacy Policy.

13. Contact Us

For any questions or concerns about your privacy or this policy, please contact us at zero@neuralway.ai.

Kairos is a general-wellness app and is not a medical device. It does not diagnose, treat, cure, or prevent any disease or condition.

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