Privacy Policy

Last updated: July 21, 2026

This Privacy Policy explains how Pulse ("Pulse," "we," "us," or "our") collects, uses, stores, and protects information when you use the Pulse mobile application and related services (the "Service"). Pulse is operated by Tempo Engineering LLC, a company registered in Virginia, United States. By using the Service, you agree to the practices described here.

1. Information we collect

Account information. When you sign in, we create an account identified by your authentication provider (via Firebase Authentication), including your email address and a unique user ID.
Wearable health data. When you connect a supported provider (currently Oura, Whoop, Fitbit / Google Health, or Apple Health), we retrieve health metrics needed to show daily insights. This may include sleep duration, sleep score, recovery/readiness score, resting heart rate, heart rate variability, blood oxygen (SpO₂), and related summary metrics. Apple Health (HealthKit) data is read on your device with your permission; Pulse only reads this data and never writes to Apple Health.
Group data. Groups you create or join, and your membership in them.
Provider connection tokens. To sync your data, we store the access and refresh tokens issued by your wearable provider. These tokens are held only on our secure server-side backend and are never made available to the mobile app or to other users.

2. How we collect it

Health data is retrieved only after you explicitly connect a provider. For Oura, Whoop, and Fitbit / Google Health this happens through that provider's secure OAuth consent screen. For Apple Health, data is read on your device through Apple's HealthKit permission prompt, where you choose exactly which categories to share. You choose which provider to connect, and you can disconnect at any time from within the app. We do not use health data (including data obtained through Apple HealthKit) for advertising, marketing, or data mining, and we never sell it.

3. How we use your information

To compute and display your daily sleep and recovery insights.
To share those daily insights with members of the groups you choose to join.
To operate, maintain, and secure the Service.
To communicate with you about the Service when necessary.

We do not sell your personal information or health data, and we do not use it for advertising.

4. How your information is shared

With your groups. Your daily insights are visible to members of the private groups you join. You control which groups you belong to.
Service providers. We use Google Firebase (Google Cloud) for authentication, database, and hosting. Your data is processed on this infrastructure.
Wearable providers. Oura, Whoop, Fitbit (via Google Health), and Apple Health are the sources of your health data; their handling of your data is governed by their own privacy policies.
Legal. We may disclose information if required by law or to protect the rights, safety, or security of users or the Service.

5. Data storage and security

Data is stored on Google Firebase infrastructure and encrypted in transit. Provider access and refresh tokens are restricted to our backend systems and are never exposed to client applications. We apply access rules so that group data is only readable by members of that group.

6. Data retention

Pulse is designed to show your most recent daily snapshot rather than a long history. When you disconnect a provider, we stop syncing new data from it. You may request deletion of your account and associated data at any time (see "Your choices").

7. Your choices and rights

Disconnect a provider at any time in the app to stop future syncs.
Leave a group to stop sharing your insights with its members.
Request deletion of your account and data by contacting us at the email below.

8. Health data and no medical advice

Pulse presents wellness information for general and informational purposes only. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Pulse is not a HIPAA-covered entity. Always consult a qualified health professional regarding your health.

9. Children

The Service is not directed to children under 16, and we do not knowingly collect information from them. If you believe a child has provided us information, contact us and we will delete it.

10. International users

The Service is operated from the United States. If you access it from elsewhere, you understand your information may be processed in the United States.

11. Changes to this policy

We may update this Privacy Policy from time to time. Material changes will be reflected by updating the "Last updated" date above.

12. Contact us

Questions or requests? Email us at michael@tempo-engineering.net.

Tempo Engineering LLC · Virginia, United States

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