Yuni

Privacy Policy

Effective date: February 6, 2026 · Last updated: April 3, 2026

App: Yuni: Woman Cycles For Man · Contact: [email protected]

1) Summary

Yuni is designed to be private by default:

  • Your personal data (cycle dates, notes, preferences) stays on your device.
  • We do not upload or store your personal data on our servers.
  • We use PostHog for anonymous usage analytics (no ad networks, no advertising trackers). See Section 2b.
  • We use Adapty for subscription management. See Section 4.
  • We use Apple Health (HealthKit) to read and write cycle and wellness data — with your explicit permission. HealthKit data stays on your device and is never sent to our servers. See Section 5.

Apple requires developers to keep App Store privacy disclosures accurate and up to date.

2) Data we do and do not collect

We do not collect or store (on servers):

  • Your cycle dates, notes, reminders, or relationship entries
  • Any health-related information on our servers — HealthKit data is read and written on-device only and is never uploaded
  • Your messages, contacts, photos, or camera roll contents
  • Face data or biometric identifiers
  • Precise location
  • Payment details (Apple handles payments)

Stored/processed on-device only:

Depending on the features you use, Yuni may store the following locally on your device:

  • Cycle tracking inputs (e.g., start date, cycle length preferences, phase estimates)
  • Notes, journal entries, and saved preferences
  • Reminder settings (if you enable notifications)
  • App settings (language, appearance, onboarding answers, etc.)
  • Health data from Apple Health (if you grant access): menstrual flow, sleep, heart rate variability, symptoms, and mood — used to personalize recommendations and sync cycle data

Because this data is stored locally, we generally cannot access it.

Anonymous usage analytics (PostHog):

We use PostHog (posthog.com) to collect anonymous usage events — for example, which onboarding steps are completed, whether features are used, and purchase funnel steps. This helps us understand how the App is used and improve it.

  • Events are tied to a random anonymous identifier — not your name, email, or any health data.
  • We do not collect cycle dates, notes, or any personal content via analytics.
  • PostHog data is stored on servers in the EU.

If you prefer not to be included in analytics, you can contact us at [email protected] and we will opt you out.

3) Permissions the App may request

Depending on features you use, the App may request:

  • Notifications (to send reminders or prompts you enable)
  • (Optional) Calendar access only if you choose a feature that writes events (if the App supports it)
  • Apple Health (HealthKit) — to read cycle data, sleep, heart rate variability, and symptoms for personalized support, and to write confirmed period dates back to Apple Health. You choose exactly which data types to share via the HealthKit permission sheet. Yuni never stores HealthKit data on external servers.
  • No contact access is required for core functionality

You can revoke any permission at any time in iOS Settings.

4) In-App Purchases

If the App offers paid features via In-App Purchase:

  • Apple processes payment details.
  • We use Adapty (adapty.io) for subscription management and paywall functionality. Adapty receives limited entitlement data (e.g., whether a subscription is active) to unlock features. See Adapty's Privacy Policy at adapty.io.
  • We do not receive your full payment information.
  • Refund evaluation: If a refund is requested for an in-app purchase, we may provide Apple with information about your in-app purchase activity to help Apple evaluate the request. This may include time since app installation, total app usage time, an anonymous account identifier, whether the in-app purchase was consumed, whether it included a trial period, total amount spent, and total amount refunded. This data is shared with Apple only and is not used for any other purpose. By using the App, you consent to this data sharing; you can revoke consent at any time by contacting us at [email protected].

5) Apple Health (HealthKit) integration

If you grant HealthKit access, Yuni may read and write the following data types entirely on your device:

Data Yuni reads (with your permission):

  • Menstrual flow history — to import existing cycle data and avoid manual re-entry
  • Sleep analysis — to provide context-aware daily recommendations
  • Heart rate variability and resting heart rate — to validate cycle phase estimates
  • Step count and active energy — as an energy level proxy for recommendations
  • Symptoms (cramps, headache, bloating, etc.) — to track severity and correlate with cycle phases
  • Mood and emotions (iOS 18+) — to enrich daily check-in context

Data Yuni writes (with your permission):

  • Confirmed period start dates and menstrual flow data — to keep Apple Health in sync with your entries in Yuni

What Yuni does NOT do with HealthKit data:

  • Transmit it to any server (ours or third-party)
  • Use it for advertising or marketing
  • Share it with analytics services (PostHog does not receive any HealthKit data)
  • Store it outside the app sandbox

You can revoke HealthKit access at any time in iOS Settings → Health → Data Access & Devices → Yuni. Revoking access does not delete data already saved in Apple Health by other apps.

6) Device backups and iCloud

We do not upload your data to our servers. However, your device may back up app data depending on your Apple settings (for example, iCloud Backup). Apple's handling of backups and sync is governed by Apple's policies and your settings.

7) Data retention

  • On-device data: kept until you delete it in the App (if available) or delete the App from your device.
  • Purchase entitlement status (if applicable): retained only as needed to provide access to paid features.

8) Your choices and controls

You can control your data by:

  • Editing or deleting content inside the App (if the App provides deletion controls)
  • Disabling notifications in iOS Settings
  • Deleting the App to remove locally stored data
  • Revoking HealthKit access in iOS Settings → Health → Data Access & Devices → Yuni

Because we do not receive your stored content, requests like "export everything you have about me" may not be possible from us — your data is on your device.

9) Security

We rely on iOS security features and store your content locally. No method is 100% secure; you are responsible for securing your device, passcode/Face ID settings, and backups.

10) Children's privacy

The App is not intended for children under 13 (or the applicable minimum age in your region) without parental consent. We do not knowingly collect personal data from children.

11) International users

Yuni is operated from the United Kingdom. Because we do not collect or store your Yuni content on servers, we generally do not transfer that content internationally. Apple may process App Store purchase and device-related data under Apple's own policies.

12) Changes to this Privacy Policy

We may update this policy from time to time. If changes are material, we will provide notice within the App or via the App Store listing where feasible.

13) Contact

Privacy questions: [email protected]

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