Privacy Policy

HF Daily, Inc. Effective date: July 6, 2026 Last revised: July 16, 2026

1. Introduction

This Privacy Policy describes how HF Daily, Inc. ("HF Daily," "we," "us," or "our"), an Illinois corporation, handles information in connection with the HF Daily mobile application (the "App") and our website at hf-daily.com (the "Website"). The App and the Website are intended for adults aged 18 and over.

HF Daily is a patient-facing heart failure self-management and symptom-tracking application. Users complete a short daily check-in and can record their weight, blood pressure, and how their breathlessness, difficulty breathing while lying down, and swelling compare to their usual condition. Based on predetermined rules, the App displays one of three general results: continue your usual plan, watch and recheck, or consider contacting your care team.

This Privacy Policy explains our information practices. Our Terms of Use separately govern use of the App and the Website.

2. Information Stored on Your Device and Limited App Analytics We Receive

The App does not use accounts, logins, or passwords. The health information you enter in the App is stored locally on your device. This includes:

  • symptom check-in responses;
  • weight and blood pressure entries;
  • care-team contact information you choose to save;
  • reminder preferences; and
  • your check-in history.

HF Daily does not transmit these health entries to, or store them on, HF Daily's servers. Depending on your device settings, your operating system or device provider may back up app data. HF Daily does not control those backups. These entries are not shared with HF Daily unless you choose to send them to us yourself, for example by including a screenshot in a feedback email.

The App does send HF Daily limited app usage and technical information ("app analytics"). App analytics do not include your symptom responses, weight values, blood pressure values, or care-team contact details. App analytics may include: a participant identifier, session identifier, and event identifier; timestamps and the local date of a check-in; the app version and your platform, such as iOS or Android; event types, such as when the App is opened, a check-in is started, completed, or abandoned, or a reminder notification is tapped; how long a check-in took; whether a weight or blood pressure entry was made, but not the values entered; whether reminders are enabled; and restricted technical error labels. The participant identifier is a randomly generated code. It is not created from your name, email address, or device identifiers, but it may be capable of being linked to you, for example through our onboarding records, and we treat app analytics as personal information where required by applicable law. Like most online services, our hosting provider may process your device's IP address transiently to deliver and secure the service. We do not store IP addresses in our analytics records.

Reminder notifications are optional and are generated on your device. They are reminders to complete a check-in. They are not medical alerts, emergency alerts, or communications from a clinician. HF Daily's receipt of app analytics does not mean that HF Daily or any clinician monitors your health or reviews your check-ins. The App does not automatically contact your healthcare provider, caregiver, emergency services, or anyone else.

3. Information We Receive From You

We may receive personal information from you outside the App in connection with recruitment, onboarding, surveys, interviews, feedback, support requests, and related communications. This may include:

  • your name and email address;
  • survey responses;
  • interview and feedback responses;
  • support emails and related correspondence; and
  • screenshots, information you voluntarily provide, and audio or video recordings of interviews where you have agreed to recording.

We use service providers that support email, surveys, document storage, website hosting, and technical operations to help us handle these communications and responses.

4. Website Information

The Website does not intentionally use advertising trackers, behavioral advertising, or analytics designed to build user profiles. Like most websites, our hosting provider may automatically generate standard server logs, which can include IP addresses, browser type, and basic device information. We use any such logs only to operate, secure, and troubleshoot the Website.

5. How We Use Information We Receive

We use the information we receive to:

  • operate and support the App and the Website;
  • communicate with you;
  • conduct onboarding;
  • understand how the App is used, such as whether the App is opened and whether check-ins are started, completed, or abandoned, and how long they take;
  • understand which app versions and platforms are in use;
  • identify, diagnose, and fix technical errors;
  • administer surveys and interviews;
  • respond to support requests;
  • obtain feedback and improve usability and product functionality;
  • maintain security and investigate suspected misuse or security incidents; and
  • comply with legal obligations.

6. How We Share Information

We do not sell personal information. We may disclose information we receive only in limited circumstances:

  • to service providers performing services for us, such as email, survey, document storage, website hosting, and backend hosting and technical infrastructure providers;
  • at your direction or with your consent;
  • to comply with law or valid legal process;
  • to protect the rights, safety, or property of our users, HF Daily, or others; and
  • in connection with a merger, financing, restructuring, acquisition, or sale of our business or assets.

HF Daily does not transmit the health entries you type into the App, such as symptom responses, weight values, blood pressure values, or care-team contact details, to service providers as part of the App's normal operation. Service providers that host or support our backend may process app analytics on our behalf. If you choose to send us a screenshot, recording, message, or other communication containing health information, service providers used to deliver or store that communication may process it on our behalf.

7. Data Retention and Deletion

Information you enter in the App is stored on your device, and HF Daily generally cannot access, retrieve, or delete it. You may delete local information using available App functions, by clearing the App's data, or by uninstalling the App, subject to how your device and operating system handle app data.

We retain information we actually receive only as long as reasonably necessary for the purpose for which it was collected, to comply with legal obligations, to maintain security, or to keep business records.

We retain app analytics for up to 12 months. After that, records become eligible for automatic deletion, which occurs on a rolling basis rather than at an exact moment. We may retain some records longer where needed for security, legal obligations, or business records. You can view and copy your participant identifier in the App's settings. To request deletion of app analytics associated with your participant identifier, email will@hf-daily.com and include that identifier. If you delete and reinstall the App, a new participant identifier is generally created, and records tied to the old identifier can no longer be linked to you or individually deleted. Some records cannot be linked to any participant identifier and cannot be individually deleted.

You may request access to, correction of, or deletion of information we hold about you by emailing will@hf-daily.com. We will respond consistent with applicable law. Some requests may be subject to legal or operational exceptions.

8. Security

We use reasonable administrative, technical, and organizational safeguards designed to protect the information we receive. No method of transmission or storage is completely secure, and we cannot guarantee absolute security. If we become aware of a suspected security incident involving personal information, we will investigate it and provide any notifications required by applicable law.

9. A Note on Health Information

HF Daily currently operates as an independent, consumer-facing application. It is not integrated with, and does not provide services on behalf of, any hospital, healthcare provider, insurer, or health plan. HF Daily receives limited app usage and technical information as described in Section 2. It does not remotely store the health entries you type into the App. This Privacy Policy describes how HF Daily handles information in connection with the App and the Website.

10. Age Restriction

The App and the Website are intended only for individuals aged 18 or older. We do not knowingly collect personal information from anyone under 18. If you are a parent or guardian and believe that a minor has provided personal information to us, please contact us at will@hf-daily.com and we will take appropriate steps to delete it.

11. State Privacy Rights

Residents of certain states may have rights under applicable law, including rights to request access to, correction of, or deletion of personal information, or information about our data practices. Where required by applicable law, we will honor these rights. To make a request, email will@hf-daily.com.

We do not sell personal information, and we do not use personal information for cross-context behavioral advertising.

12. Changes to This Privacy Policy

We may update this Privacy Policy from time to time, for example to reflect changes in the App, our practices, or the law. If we make material changes, we will provide notice, such as by posting a prominent notice in the App or on the Website, or by emailing users where we have contact information. The date of the most recent revision is shown at the top of this Policy. Where required by applicable law, we will obtain consent before materially different data practices apply to information previously collected.

13. Contact Us

If you have questions or comments about this Privacy Policy, please contact us at:

HF Daily, Inc.
Chicago, Illinois
Email: will@hf-daily.com