Privacy Policy

Last updated: November 12, 2026

crelve ("we", "us", or "our") operates the iOS application "LunaCycle" (the "App"). This Privacy Policy explains how we collect, use, and protect your information when you use the App.

Key Point: Your cycle, symptom, mood, flow, note and pregnancy records are stored only on your device. The App does not upload them to our servers or to any cloud service, and it does not send them to advertising, analytics or AI services. The App does not require you to create an account or enter your name or email address.

1. Information We Collect

We may collect the following information when you use the App.

1.1 Health and Cycle Data (Stored on Your Device Only)

This data is stored locally on your device in the App's own storage and is not transmitted to our servers. It is deleted when you delete the App. If you back up your device with iCloud or a computer, iOS may include the App's data in that backup; this is controlled by your Apple settings, not by us. The App does not ask for your name, email address, or other contact details.

If you use "Export Data" in Settings, the App creates a CSV file of your cycle and symptom records on your device and opens the iOS share sheet. The file goes only where you choose to send it.

1.2 Automatically Collected Information

This information does not include the cycle, symptom, mood, flow, note or pregnancy records described in Section 1.1. In the App's code, the information sent to analytics consists of screen names and technical usage events, and ad requests contain only standard ad-request information, not your records.

1.3 Permissions and Features

The App does not request access to your camera, photo library, contacts, or location, and it does not connect to Apple Health (HealthKit).

2. Where Your Data Is Stored

Data TypeStorage LocationSent Externally
Cycle, symptom, mood, flow, note and pregnancy records, predictions, statisticsDevice onlyNo
App preferences and settings (including the passcode lock setting)Device onlyNo
CSV export file (only if you use Export Data)Created on your device; goes only where you send it from the share sheetOnly if you choose to share it
Usage and crash data (no health records)Google Firebase (Analytics, Crashlytics)Yes
Anonymous identifiers and purchase statusFirebase and RevenueCatYes
Push notification tokenGoogle Firebase Cloud MessagingYes
Ad-related data (for users without Premium; no health records)Google AdMob and its mediation partnersYes

3. How We Use Your Information

We use the information described in Section 1.2 for the following purposes:

We do not use your cycle, symptom, mood, flow, note or pregnancy records for advertising, profiling or any other purpose, because we do not receive them.

4. Third-Party Services

We use the following third-party services. These services collect and use information according to their respective privacy policies. None of them receives your cycle, symptom, mood, flow, note or pregnancy records from the App.

ServiceProviderPurposePrivacy Policy
Firebase AnalyticsGoogle LLCUsage analyticsLink
Firebase CrashlyticsGoogle LLCCrash reportingLink
Firebase Cloud MessagingGoogle LLCPush notification token and deliveryLink
Firebase Cloud FunctionsGoogle LLCBackend processing for the AppLink
Firebase Remote ConfigGoogle LLCRemote configuration of app behavior (such as ad settings)Link
Firebase AuthenticationGoogle LLCAccount-free identification used to support purchases and backend protection (no sign-up is required)Link
Firebase App CheckGoogle LLCProtecting our backend from abuseLink
Google AdMobGoogle LLCAd delivery (users without Premium)Link
Google User Messaging PlatformGoogle LLCConsent messages for ads, where requiredLink
AppLovin (AdMob mediation)AppLovin CorporationAd delivery through AdMob mediation (users without Premium)Link
Unity Ads (AdMob mediation)Unity TechnologiesAd delivery through AdMob mediation (users without Premium)Link
RevenueCatRevenueCat, Inc.Subscription and purchase managementLink
Apple App StoreApple Inc.Payment processing and App Tracking TransparencyLink

5. Information Sharing

We do not sell your personal information. We do not share your personal information with third parties except in the following cases:

Because your cycle, symptom, mood, flow, note and pregnancy records stay on your device, we have no such records to share.

6. Data Retention and Deletion

Data stored on your device is deleted when you delete the App. Data held by our service providers (such as analytics, crash reports, and purchase records) is retained for as long as necessary to provide the services or as required by law, and is then deleted or anonymized.

7. Data Security

Your records are kept in the App's storage on your device and are not sent to any server of ours. You can turn on the Premium passcode lock to require Face ID, Touch ID or your device passcode when the App is opened. We implement industry-standard security measures for the information that is collected, but no method of transmission over the Internet or electronic storage is 100% secure. Because your records live on your device, please also protect your device with a passcode and be careful about who can access your backups and any exported CSV files.

8. Your Rights

Depending on where you live, you may have the following rights:

Your cycle and health records are on your device, so you can view them in the App, export them with Export Data, and delete them by deleting the App. You can limit ad tracking and analytics in your iOS privacy settings. Because the App does not collect your name or email address, we may need other information to find any data we hold. To exercise these rights, please contact us using the information below.

9. Children's Privacy

This App is not intended for children under 13 years of age. We do not knowingly collect personal information from children under 13. If we learn that we have collected personal information from a child under 13, we will delete it promptly.

10. Changes to This Policy

We may update this Privacy Policy as needed. We will notify you of significant changes through the App or other means. The updated Privacy Policy will take effect when posted on this page.

11. App Tracking Transparency

On devices running iOS 14.5 or later, we ask for your permission before tracking your activity across other companies' apps and websites. If you allow it, your device's advertising identifier is shared with Google AdMob for ad selection only. If you decline, you will still see ads (if you have not purchased Premium), just less relevant ones, and you can still use all features of the App. Your cycle and health records are never used for ad selection.

12. Health Information Disclaimer

LunaCycle is a personal tracking tool and is not a medical device. Cycle, ovulation, fertile-window, due-date and pregnancy-week estimates are rough guides calculated from the dates you enter and are not guaranteed to be accurate. The App must not be used for contraception (birth control), to diagnose or treat any condition, or as a substitute for professional medical advice. If you have health concerns, an irregular or unusual cycle, severe pain, or a possible pregnancy, consult a doctor.

Contact

crelve
Email: w4cd2017@gmail.com

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