Privacy Policy

Last updated: July 22, 2026

This Privacy Policy explains how Opsin App, LLC (“Opsin,” “we,” “us,” or “our”) handles personal information when you use the Opsin app, our website, and related services (together, the “Services”). By using the Services, you acknowledge the practices described here.

Where we act as the entity that decides how and why personal information is processed, we are the “controller” or “business” for that information; if we ever process personal information on behalf of an organization that provides you access, we act as that organization’s service provider or processor. Opsin is designed to keep your data on your device. The health, sleep, and location information the app uses is processed entirely on your device and is never transmitted to, or collected by, Opsin. The only personal information Opsin actually collects is your email address if you join our website waitlist, plus standard server logs from our website host. Our Consumer Health Data Privacy Policy is part of, and incorporated into, this Privacy Policy.

1Scope

This Policy applies to personal information we collect through our website, mobile apps, and communications with you. It does not apply to third-party sites or services that may link to or from the Services, which have their own privacy practices.

2Information We Collect

The only personal information Opsin collects is:

• Waitlist email address: If you join our waitlist on our website, we collect your email address to send you updates about Opsin. It is stored by our email provider, Kit (ConvertKit), acting as our processor.
• Website server logs: When you visit our website, our host, Netlify, automatically records standard server-log data, such as your IP address and basic request details, to operate and secure the site.

The following are processed only on your device and are not collected by, or transmitted to, Opsin:

• Health and sleep data (Apple HealthKit): for example, sleep and heart-rate-variability data used to generate your guidance.
• Location (Apple Core Location): used on your device for sun-time calculations.
• Purchases (Apple StoreKit): if you buy a subscription, Apple processes the transaction through the App Store; Opsin does not receive or store your payment-card information.

3Health and Other Sensitive Information

The sleep, heart-rate-variability, and location data the app works with may be health-related or “sensitive.” Because this data is processed only on your device and is never transmitted to Opsin, Opsin does not collect, store, share, or sell it. You control it through your device: you can revoke the app’s access to Health or Location at any time in your device settings, and deleting the app removes the data the app stored on your device. Our Consumer Health Data Privacy Policy describes how the app handles this on-device data.

4How We Use Information

We use the limited information we collect to operate our website, send waitlist updates to people who request them, respond to your messages, keep our site secure, and comply with our legal obligations. Opsin uses no analytics, advertising, or tracking technologies, and does not use any health, sleep, or location data for advertising or for any purpose off your device.

4.1. Marketing Communications

With your consent where required, we may send you marketing messages about our products and features. You can opt out at any time by using the unsubscribe link in our emails or by adjusting your notification settings. Even if you opt out of marketing, we may still send you non-promotional messages about your account, purchases, or the operation of the Services.

5Users Outside the United States

Opsin’s app processes data only on your device, and our website waitlist is directed to users in the United States. We do not target the Services to the European Economic Area or the United Kingdom. If you are located in the EEA or UK and choose to join our waitlist or contact us, the limited information you provide (such as your email address) may be subject to the GDPR, and you may have rights of access, correction, deletion, and objection; to exercise them, contact us using the information below. Because your health, sleep, and location data stay on your device and are never sent to us, they are not processed by Opsin.

6How We Share Information

We share the limited personal information only as follows:

• Kit (ConvertKit): our email provider, which stores waitlist email addresses on our behalf as a processor.
• Netlify: our website host, which processes server-log data to operate and secure the site.
• Professional advisors: legal, accounting, and compliance advisors.
• Legal and safety: government authorities or others when required by law or legal process, or to protect rights, safety, or property.
• Business transfers: a successor in connection with a merger, acquisition, financing, or sale of assets, subject to this Policy.

We do not share health, sleep, or location data, because that data never leaves your device.

7We Do Not Sell; Opt-Out Rights

We do not sell or share your personal information, and we do not use it for cross-context behavioral advertising. We use no advertising or analytics technologies. Where applicable, we honor recognized opt-out preference signals, such as the Global Privacy Control.

8Tracking Technologies

Our website is a static site that sets no cookies and uses no analytics, advertising, or tracking technologies. Our host, Netlify, keeps standard server logs as described above. If we add cookies or analytics in the future, we will update this Policy before doing so.

9Your Privacy Rights

Depending on where you live, you may have some or all of the following rights, subject to legal exceptions: to access or know what personal information we hold; to correct inaccurate information; to delete your information; to receive a portable copy; to opt out of certain uses; to withdraw consent; to appeal a decision on your request; and not to be treated differently for exercising your rights. To make a request, contact us using Section 17. We may need to verify your identity, and you may use an authorized agent if the agent provides proof of authorization. We respond within the time the law requires. Because most of the app’s data stays on your device, you exercise access and deletion for that data directly on your device by revoking access or deleting the app. For waitlist email addresses, use the unsubscribe link or contact us, and we will delete your address from Kit within 15 days (the period after which Kit’s rolling system backups cycle out).

10U.S. State Privacy Rights

Residents of California and other states with comprehensive privacy laws (including the California Consumer Privacy Act, as amended) have the rights described in Section 7 and Section 9, including rights concerning sensitive personal information. We do not discriminate against you for exercising these rights.

11Controller and International Processing

For the limited personal information Opsin collects (your waitlist email address and website server logs), the controller is Opsin App, LLC. This information is processed and stored in the United States by our providers, Kit (ConvertKit) and Netlify; if you access the waitlist from outside the United States, you understand your information will be processed here. The app’s personalized recommendations are generated on your device and are not used to produce legal or similarly significant effects concerning you. Where personal information is transferred from the EEA, the United Kingdom, or Switzerland, our providers Kit and Netlify have agreed to Standard Contractual Clauses (or equivalent safeguards) that apply to those transfers.

12Data Retention

Opsin does not hold your health, sleep, or location data, so there is nothing for us to retain or delete. That data lives only on your device and is removed when you revoke access or delete the app. We keep waitlist email addresses until you unsubscribe or ask us to delete them, after which they are removed from Kit within 15 days (the period after which Kit’s rolling system backups cycle out). Netlify retains server logs under its standard practices.

13Data Security

Health, sleep, and location data are protected by the security of your device and Apple’s frameworks, because that data stays on your device. The waitlist email list is held in Kit and accessible only through the account owner’s credentials, which are protected by a strong, unique password and multi-factor authentication. Access is limited to Opsin’s sole account owner, and no copy of the list is stored on Opsin’s servers, as Opsin operates no backend. No system is completely secure, and we cannot guarantee absolute security.

14International Users

Your information may be processed in the United States and other countries whose data-protection laws may differ from those where you live. Where required, we use appropriate safeguards for those transfers.

15Children’s Privacy

The Services are not directed to children, and we do not knowingly collect personal information from children under 13 (or the age of digital consent in your jurisdiction). If you believe a child has provided us information, please contact us and we will take appropriate steps to delete it.

16Changes to This Policy

We may update this Policy from time to time. When we do, we will revise the “Last updated” date above and, where appropriate, provide additional notice. The current Policy is always available through the Services.

17Contact Us

If you have questions or requests about this Policy or your personal information, contact us at privacy@opsinapp.com or Opsin App LLC, 21750 Hardy Oak Blvd, Suite 104 #616929, San Antonio, Texas 78258.