Lua

Privacy policy for Lua

Last Updated: November 4, 2025

Introduction

This Privacy Policy describes how Lua ("we", "us", or "our") collects, uses, and shares information when you use our mobile application (the "App"). We are committed to protecting your privacy and being transparent about our data practices.

Information we collect

1. Information you provide directly

When you complete the onboarding process, we collect:

  • Basic profile information: Name (optional), due date, and pregnancy-related preferences
  • Tracking preferences: Features you're interested in (kick counter, contraction timer, weight tracking, etc.)
  • Notification preferences: Whether you enable notifications, frequency, and preferred time windows
  • Widget usage: Whether you install the iOS widget
  • Premium subscription data: Information about your trial and subscription status

2. Information automatically collected

  • Device information: Platform (iOS/Android), operating system version, and app version
  • Usage analytics: How you interact with the app, collected through PostHog analytics
  • Session recordings: PostHog may record user sessions to help us improve the app experience
  • Purchase information: Subscription and payment data processed through RevenueCat and Apple/Google's payment systems
  • Conversion tracking data: Device identifiers (IDFA on iOS when permission is granted) and app events collected through TikTok Pixel for advertising measurement

3. Information stored locally on your device

The following data is stored only on your device and is not transmitted to our servers:

  • Pregnancy tracking data (kick counts, contractions, weight logs)
  • Your due date and weekly progress
  • Personal notes and milestones
  • Detailed notification preferences
  • Selected content categories

How we use your information

We use the collected information for the following purposes:

  1. Service delivery: To provide you with personalized pregnancy tracking and weekly updates based on your preferences
  2. App improvement: To analyze usage patterns and improve app functionality, design, and user experience
  3. Customer support: To respond to your feedback and support requests
  4. Subscription management: To process and manage your premium subscription
  5. Communication: To send you important updates about the app (if you've opted in)

Third-party services

We use the following third-party services that may collect information:

RevenueCat

PostHog

  • Purpose: Product analytics and session recording
  • Data shared: Usage patterns, user interactions, session replays, device information
  • Privacy policy: https://posthog.com/privacy

Apple App Store / Google Play Store

  • Purpose: Payment processing for subscriptions
  • Data shared: Payment information, purchase history (handled directly by Apple/Google)

TikTok Pixel

  • Purpose: Conversion tracking and advertising measurement
  • Data shared: Device identifiers (IDFA on iOS when granted permission), app events (such as app installs, purchases, and custom events)
  • Privacy policy: https://www.tiktok.com/legal/privacy-policy
  • Opt-out: You can opt out of TikTok tracking through iOS App Tracking Transparency (ATT) settings by denying tracking permission when prompted or by going to Settings > Privacy & Security > Tracking on your iOS device

Data retention

  • Account data: We retain your onboarding data for as long as you use the app. You can request deletion at any time.
  • Analytics data: Analytics data is retained according to our third-party providers' policies (typically 90 days to 2 years).
  • Local data: Data stored on your device remains until you uninstall the app or clear app data.

Data security

We implement appropriate technical and organizational measures to protect your personal information, including:

  • Encrypted connections (HTTPS/TLS) for all data transmission
  • Secure storage practices for data on our servers
  • Regular security assessments and updates
  • Limited access to personal data by authorized personnel only

However, no method of transmission over the internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

Your privacy rights

Depending on your location, you may have the following rights:

  • Access: Request a copy of the personal data we hold about you
  • Correction: Request correction of inaccurate or incomplete data
  • Deletion: Request deletion of your personal data
  • Portability: Request your data in a portable format
  • Opt-out: Opt out of analytics and marketing communications
  • Opt-out of tracking: iOS users can opt out of TikTok conversion tracking and other advertising tracking through App Tracking Transparency (ATT) settings (Settings > Privacy & Security > Tracking)
  • Withdraw consent: Withdraw consent for data processing where we rely on consent

To exercise these rights, please contact us at the email address provided below.

Children's privacy

The App is not intended for children under the age of 13 (or the applicable age of digital consent in your jurisdiction). We do not knowingly collect personal information from children. If you believe we have collected information from a child, please contact us immediately.

Push notifications

The app uses local push notifications to deliver pregnancy updates and reminders based on your preferences. These notifications are:

  • Scheduled locally on your device
  • Based on the preferences you select
  • Completely optional and can be disabled at any time through the app settings or device settings
  • Not used to send marketing messages or advertisements

Changes to this privacy policy

We may update this Privacy Policy from time to time. We will notify you of any material changes by:

  • Posting the new Privacy Policy in the app
  • Updating the "Last Updated" date
  • Sending you a notification (if required by law)

Your continued use of the app after changes become effective constitutes acceptance of the revised policy.

European Users (GDPR)

As this app is primarily operated from and targeted at users in the European Union, we comply with the General Data Protection Regulation (GDPR)

Your GDPR Rights

As an EU resident, you have the following rights:

  • Right of access (Article 15): Obtain confirmation of data processing and access to your data
  • Right to rectification (Article 16): Correct inaccurate or incomplete data
  • Right to erasure (Article 17): Request deletion of your data ("right to be forgotten")
  • Right to restriction (Article 18): Limit how we use your data
  • Right to data portability (Article 20): Receive your data in a structured, machine-readable format
  • Right to object (Article 21): Object to processing based on legitimate interests
  • Right to withdraw consent: Withdraw consent at any time without affecting prior processing
  • Right to lodge a complaint: File a complaint with the CNIL (Commission Nationale de l'Informatique et des Libertés) in France or your local supervisory authority

Data protection authority

For users in France, the supervisory authority is:

CNIL (Commission Nationale de l'Informatique et des Libertés)

  • Website: https://www.cnil.fr
  • Address: 3 Place de Fontenoy, TSA 80715, 75334 PARIS CEDEX 07, France

Contact us

If you have any questions, concerns, or requests regarding this Privacy Policy or our data practices, including exercising your GDPR rights, please contact us at:

For GDPR-related requests, please clearly indicate "GDPR Request" in your subject line and specify which right you wish to exercise. We will respond within one month of receipt of your request, as required by GDPR.

Cookie policy

The App does not use cookies. However, our third-party analytics providers (PostHog) may use similar technologies for analytics purposes. You can control these through your device settings.

By using Lua, you acknowledge that you have read and understood this Privacy Policy and agree to the collection, use, and sharing of your information as described herein.