Consumer Health Data Privacy Policy
Last updated: October 12, 2026 · Applies to consumers in the United States, including under the Washington My Health My Data Act (RCW 19.373), Nevada SB 370 and the Connecticut Data Privacy Act. Our general Privacy Policy also applies.
Who we are
Ovulyx is operated by Stefan Renzler, Donaueschingenstraße 28/45-46, 1200 Vienna, Austria (stubensport@gmail.com).
In the United States, Ovulyx is only available to adults aged 18 or older. We do not knowingly collect consumer health data from anyone under 18 in the United States; if we learn that we have, we delete the account.
Consumer health data we collect and why
| Category | Purpose and use |
|---|---|
| Menstrual cycle data: period start and end, flow intensity, predicted fertile window and phases calculated from it | Core function of the app: cycle tracking and forecasts for you |
| Diary entries: mood, energy, symptoms, basal body temperature, notes, daily status | Showing your history, patterns and personal insights |
| Optional mode-specific information (e.g. trying to conceive, menopause, contraception reminders you set yourself) | Tailoring forecasts, reminders and content to your situation |
| Information you choose to share with a connected partner (summaries, reactions, shared to-dos and appointments) | The partner-sharing feature, only if you enable it and only the items you select |
| Imported cycle data (optional, e.g. from an Apple Health export or another cycle app) | Importing your existing history at your own request |
We use this data only to provide the features you request. We do not use it for advertising, we do not sell it, and we do not use geofencing.
Sources
All consumer health data comes directly from you (what you enter or import) or is calculated by the app from your own entries.
Consumer health data we share, and with whom
- Your connected partner — only the categories and items you actively choose to share, at your direction. You can stop sharing at any time.
- Service providers (processors) that host and operate the app on our behalf and may not use the data for their own purposes: Cloudflare, Inc. (hosting and database, EU region) and, only if you enable notifications, push-notification delivery services (Expo/650 Industries, Inc., and the push service of your device or browser) for reminder texts.
We do not share consumer health data with advertisers, data brokers or payment providers. Ads in Ovulyx are non-personalized and never receive health data. We have no affiliates with which consumer health data is shared.
Consent
We collect consumer health data only with your consent, which you give through a separate checkbox when you create your account. Sharing with a partner requires your separate action for each connection and the items you choose. You can withdraw consent at any time by turning sharing off or deleting your account.
Your rights and how to exercise them
- Confirm and access whether we collect, share or sell your consumer health data, and get a copy: in the app under Settings → Account → Export data, or by e-mail.
- Get a list of third parties with which your data was shared: by e-mail.
- Delete your consumer health data: in the app under Settings → Account → Permanently delete account (immediate), or by e-mail (see Delete account).
- Withdraw consent to collection or sharing: turn off partner sharing, or delete your account.
E-mail requests go to stubensport@gmail.com from the address registered with Ovulyx. We respond within 45 days (extendable once by 45 days where reasonably necessary, with notice). We do not discriminate against you for exercising your rights.
Appeals: If we decline your request, you can appeal by replying with the subject “Appeal”. We decide within 45 days and explain our decision. If the appeal is denied, you can contact the attorney general of your state, for Washington residents the Washington State Attorney General.