Questions, answered.

No. mylune stores all health data on your device only. The app makes no network requests that carry your health information. Nothing is uploaded to any server, ever.

No. mylune has no user database, no server-side health data storage, and no account linked to your health records. There is no mylune infrastructure that holds your cycle history.

No. Because mylune stores nothing on any server, there is nothing to subpoena. Courts cannot compel us to hand over data we do not have. Your data is on your phone, protected by device encryption.

No. mylune contains no analytics SDK, no advertising SDK, and no crash-reporting SDK. We do not use Firebase Analytics, Google Analytics, Facebook SDK, Mixpanel, Amplitude, or Adjust. We removed these entirely.

The app uses no cookies at all. The website uses technically necessary cookies set by our hosting provider (Vercel) only to serve pages correctly. These do not identify you and are not used for tracking.

On iOS, your data is protected by the iOS Data Protection framework, tied to your device passcode and Secure Enclave. On Android, file-based encryption and the Android Keystore protect your data. The encryption keys never leave your device.

Nothing. Your data is on your device, not our servers. If mylune ceases to exist, your data remains where it always was - on your phone, encrypted, accessible only by you.

Yes. The app makes no outbound network requests carrying health data, which you can verify with a network proxy tool. We welcome independent security audits and will publish results when conducted.

No. mylune requires no account, no email address, and no sign-in of any kind. You download the app and start tracking immediately.

Yes. Core cycle tracking, daily health logging, insights, self-care suggestions, and all 18 languages are free with no hidden charges. There is no subscription in the current version.

mylune asks for the date of your last period and your typical cycle length so it can generate predictions. It also offers an optional health conditions picker. None of this information leaves your device.

Yes. mylune never asks for your name, email, phone number, or any identifying information. There is no identity attached to your health data.

Yes. mylune is fully offline. It requires no internet connection to log your period, track symptoms, view predictions, or use any feature. Everything runs on your device.

Yes. mylune predicts your next period and ovulation window based on your logged cycles. Predictions improve in accuracy over time. They are presented as estimates, not diagnoses.

Yes. You can export a complete backup of your health data from Settings at any time. You can also export a Doctor Visit PDF - a formatted summary of your cycle history to share with a healthcare provider.

Yes. The Doctor Visit PDF export generates a formatted health summary from your logged data that you can bring to a clinic appointment. This is included in the free version.

Yes. The Daily Log tab lets you record mood, sleep quality, energy level, and nutrition each day. This data is stored on your device only and included in your insights over time.

Yes. You can set reminders for period logging, medication, and daily check-ins from Settings. Reminder notifications do not contain health-specific wording when Stealth Mode is enabled.

The Self-Care tab shows phase-based rituals and suggestions tailored to where you are in your cycle. It also includes a curated resources library. There is no AI or coach in the current version.

Yes. Because mylune stores nothing on a server, there is nothing a court can subpoena from us. This is architecture, not policy. You can also enable Legal Protection Mode for additional safeguards including clinical terminology and conservative auto-deletion.

Legal Protection Mode is a setting designed for women in US states where reproductive health data carries legal risk. When enabled, it uses clinical terminology in all stored records and applies conservative data auto-deletion defaults.

Only if it exists on a server. If your period app stores data in the cloud, that data can be obtained via subpoena or court order. mylune stores everything on your device only - there is nothing on our infrastructure to compel us to produce.

Enable Stealth Mode in Settings. The app icon changes to a calculator or utility icon. The app name changes in your recent apps list. No health-related words appear in notifications. All your data stays intact.

Stealth Mode disguises the mylune app as a calculator or utility on your home screen. It is designed for women in unsafe home situations, conservative households, or anyone who needs their health app to be invisible to others.

Yes, by architecture. No personal health data is collected, stored, or processed on any server, so there is no data to regulate under DPDP. Your health data never leaves your device.

Yes. mylune supports Tamil with culturally adapted content, not just translated strings. Switch language in Settings. Tamil, Telugu, Bengali, and Marathi are all included in the free version.

mylune supports Hindi, Tamil, Telugu, Bengali, Marathi, and Kannada at launch, alongside 12 other languages. All 18 languages are free with no additional purchase.

Yes. mylune is launching in India and the USA simultaneously. The app is available on iOS and Android in both countries from day one.

Culturally adapted. mylune uses native speakers for localisation, not machine translation. Health terminology, phase descriptions, and self-care suggestions are adapted for cultural context, not just translated word-for-word.

Go to Settings, then Language. Choose from any of the 18 supported languages. The app updates immediately, including all screen labels, health content, and phase descriptions.