Home / Privacy / Cadence Days

Cadence Days privacy policy.

How Sunstar Macedon handles account information, cycle tracking data, shared cycle relationships, and related support requests for Cadence Days.

This Privacy Policy explains how Sunstar Macedon handles personal data in connection with the Cadence Days app and related services.

Cadence Days is a menstrual cycle tracking app that helps users log cycle information, view estimated upcoming period and ovulation dates, manage tracked profiles, and optionally share cycle updates with trusted people.

By using Cadence Days, you acknowledge that we may collect, use, store, and process information as described in this Privacy Policy.

1. Who We Are

Cadence Days is provided by Sunstar Macedon.

2. What Data We Collect

Depending on how Cadence Days is implemented and used, we may collect the following categories of data.

Account Data

  • email address
  • authentication identifiers
  • login provider information such as Apple Sign-In or Google Sign-In identifiers
  • account preferences
  • subscription or plan status

Cycle Tracking Data

  • last period start date
  • cycle length
  • period length
  • predicted upcoming period dates
  • predicted fertile window dates
  • predicted ovulation dates
  • profile names, colors, labels, and related tracking settings

Shared Cycle Data

  • share invitations
  • accepted shared cycle relationships
  • account-to-profile linkage needed to support sharing
  • shared profile update history where applicable

Support and Operational Data

  • customer support communications
  • deletion requests
  • export requests
  • troubleshooting details you provide

Device and Service Data

  • app version
  • operating system
  • device type
  • technical logs needed to operate, secure, and troubleshoot the service

Analytics and Diagnostics

If enabled in production, we may collect limited analytics, crash diagnostics, and performance information.

3. Sensitive Health-Related Data

Menstrual cycle tracking data is personal and sensitive health-related data.

We treat cycle tracking data, prediction data, and shared cycle relationship data as sensitive information and only use it to operate Cadence Days, improve core service reliability, provide requested features, comply with legal obligations, and protect the security of the service.

We do not sell menstrual cycle tracking data.

4. How We Use Data

We may use data to:

  • create and manage user accounts
  • authenticate users
  • provide cycle tracking features
  • generate cycle-related predictions and reminders
  • enable optional sharing features between trusted users
  • manage subscription plan access and sharing limits
  • process account deletion and data export requests
  • maintain security and prevent abuse or fraud
  • troubleshoot technical problems
  • comply with legal obligations

5. How Sharing Works

Cadence Days may allow users to share cycle information with trusted people.

When a user chooses to share cycle information:

  • the user intentionally initiates sharing
  • shared recipients may be able to view cycle profile data made available to them
  • sharing relationships are stored so the feature can function
  • users remain responsible for deciding who they share with

Users control whether they share cycle data with others. Sharing is optional.

7. Third-Party Services and Processors

We may use third-party service providers to help operate Cadence Days, such as providers for:

  • cloud hosting
  • authentication
  • analytics
  • crash diagnostics
  • email delivery
  • subscription billing

These providers may process personal data on our behalf subject to contractual or legal safeguards.

Known payment providers:

  • Apple
  • Google

8. Data Sharing

We may share data:

  • with service providers that help us operate Cadence Days
  • with other users only when a user intentionally uses the app's sharing features
  • when required by law, regulation, court order, or valid legal process
  • when necessary to investigate fraud, abuse, or security incidents
  • in connection with a merger, acquisition, financing, or asset sale, subject to applicable protections

We do not sell personal data or sensitive health-related data.

9. Data Retention

We retain personal data only for as long as reasonably necessary for the purposes described in this Privacy Policy, including to:

  • provide the service
  • maintain account functionality
  • support legal, tax, accounting, and security obligations
  • resolve disputes
  • enforce our agreements

When account deletion is completed, we will delete or anonymize personal data unless retention is required for legal, regulatory, security, fraud-prevention, or similar legitimate reasons.

10. Account Deletion and Data Deletion

Users can initiate account deletion from within the app.

Cadence Days also provides a public web deletion page at https://sunstarmacedon.com/delete-account-cadence-days.html.

We aim to process deletion requests without undue delay and normally within 30 days, subject to identity verification and any legal or security-related retention requirements.

When an account is deleted, we intend to delete or anonymize associated personal data, including cycle tracking profiles and sharing relationships, except where retention is legally required or necessary for security, fraud prevention, financial recordkeeping, or similar legitimate reasons.

11. Data Export and Access Requests

Where available, users may request a copy of their data or request account-related privacy assistance by emailing luka@sunstarmacedon.com.

12. Security

We use reasonable administrative, technical, and organizational measures designed to protect personal data.

No method of transmission over the internet or electronic storage is completely secure, and we cannot guarantee absolute security.

13. Children's Privacy

Cadence Days is not intended for children under the age required by applicable law to independently consent to personal data processing for this type of service.

If you believe a child has provided personal data in violation of applicable law, contact us so we can review and take appropriate action.

14. International Transfers

If personal data is transferred across borders, we will take steps intended to provide appropriate safeguards where required by applicable law.

15. Your Rights

Depending on your location, you may have rights to:

  • access personal data
  • correct inaccurate data
  • delete data
  • restrict certain processing
  • object to certain processing
  • receive a copy of data in portable form
  • withdraw consent where processing is based on consent
  • complain to a supervisory authority

To exercise privacy rights, contact luka@sunstarmacedon.com.

16. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. If we make material changes, we may provide notice in the app, on the website, or by other appropriate means.

The latest version will be posted at https://sunstarmacedon.com/privacy-cadence-days.html.

17. Contact Us

For support, privacy requests, or account deletion questions, contact luka@sunstarmacedon.com.