Privacy Policy

Introduction

Welcome to SeaDays. We respect your privacy and are committed to protecting your personal data. This privacy policy explains how we collect, use, and safeguard your information when you use our cruise planning application.

Information We Collect

Personal Information

• Name and email address
• Profile picture and bio (optional)
• Cruise booking information
• Port preferences and travel history

Usage Data

• App interactions and feature usage
• Device information and IP address
• Location data (with your permission)
• Photos and content you upload

How We Use Your Information

We use your information to:

• Provide and improve our cruise planning services
• Personalize your experience
• Manage subscriptions bought through the App Store or Google Play
• Send important updates and notifications
• Enable social features and crew collaboration
• Track XP, points, and achievements
• Provide customer support

Data Sharing and Disclosure

We may share your data with:

• Crew Members: Information you share within crew groups
• Service Providers: Cloud hosting, analytics, advertising, and subscription management (RevenueCat). Payments are processed by Apple (App Store) or Google (Google Play); we never see your card details.
• Legal Requirements: When required by law or to protect our rights

Third-Party Services

App and account services:

• Supabase: Database, authentication, and file storage
• RevenueCat: Subscription and in-app purchase management. Payments are processed by Apple (App Store) or Google (Google Play).
• Google AdMob: Advertising in the mobile app for free-tier users
• Google Firebase Analytics: In-app analytics
• Sentry: Error tracking and crash reporting
• Sign in with Apple: Account sign-in

Website (seadays.app), hosted on GitHub Pages:

• Google Analytics 4 (GA4): Website analytics, with Consent Mode v2. Analytics storage stays denied until you accept analytics.
• Google AdSense: Display ads on selected blog articles, only after you accept advertising cookies

These services may collect technical data (device information, error logs, usage analytics) to help us improve stability and performance. Sentry receives error reports and crash data, which can include technical details from the session where the error happened. We do not claim that every report is anonymized.

Website Analytics (seadays.app)

On our marketing and content website (https://seadays.app), we use Google Analytics 4 (GA4) to understand aggregate traffic, popular pages, and key actions such as store or download clicks. This is separate from in-app analytics and from Google Search Console (which measures search indexing and performance, not on-site behavior).

We use Google Consent Mode v2. By default, analytics and advertising storage signals are set to denied. Analytics cookies are used only after you choose Accept analytics or Accept analytics & ads on our website cookie banner. Choosing analytics does not enable advertising cookies. If you choose Decline all, analytics storage stays denied. You can change your choice later from the Cookie Policy page.

When analytics consent is denied, Google may still receive limited cookieless measurement pings according to Consent Mode.

Advertising

Mobile app: SeaDays shows ads to free tier users through Google AdMob. If you subscribe to Basic, Pro, or Premium, ads are not shown while your subscription is active.

AdMob and its partners may use device identifiers, approximate location, and usage data to deliver and measure ads. In the European Economic Area (EEA), United Kingdom, and Switzerland, we use Google’s User Messaging Platform (UMP) to collect your consent before serving personalized ads in the app.

Website (seadays.app): On selected blog article pages we may show Google AdSense display ads. AdSense may use cookies and similar technologies for advertising storage, ad measurement, and—when you allow it—personalized advertising. We do not use Google Auto Ads (no automatically injected pop-ups, interstitials, vignettes, or sticky page-level ads).

Website advertising cookies and personalized AdSense ads are used only after you explicitly choose Accept analytics & ads on the cookie banner (which sets Consent Mode signals such as ad_storage, ad_user_data, and ad_personalization to granted). Accepting analytics alone does not enable AdSense. If advertising consent is not granted, we do not load AdSense ad requests for personalized advertising on the website.

Your choices:

• On the website: Use the cookie banner choices (Decline all, Accept analytics, or Accept analytics & ads), or reopen them from the Cookie Policy page.
• In the app: Open Profile → Settings → Privacy & Data → Ad privacy options at any time to review or change your ad consent preferences.
• On iOS: You may also see Apple’s App Tracking Transparency (ATT) prompt. You can change tracking permission later in iOS Settings → Privacy & Security → Tracking.

For more information about how Google uses data in advertising, see Google’s Advertising & Privacy page.

Data Security

Data is encrypted in transit (HTTPS/TLS). Sign-in uses Supabase Auth, and our database uses row-level security so you can only reach your own private data. We do not claim encryption at rest or third-party certification. Details are on our Security page.

Your Rights and Choices

You have the right to:

• Access: Request a copy of your data
• Correction: Update inaccurate information
• Deletion: Request deletion of your account and data
• Export: Request a copy of your data in a portable format (Profile → Settings → Privacy & Data)
• Opt-Out: Unsubscribe from marketing emails
• Ad choices (app): Manage personalized ad consent in the app under Profile → Settings → Privacy & Data → Ad privacy options
• Website analytics & advertising: Choose Decline all, Accept analytics, or Accept analytics & ads on seadays.app via the cookie banner, or reopen choices from the Cookie Policy page

To exercise these rights, contact us at privacy@seadays.app

Cookies and Tracking

We use cookies and similar technologies to:

• Remember your preferences
• Analyze app performance
• Provide personalized content
• Measure website traffic on seadays.app with GA4 when you consent

You can manage cookie preferences in your device settings. On the website, use the cookie banner (or Cookie Policy controls) for GA4 analytics and AdSense advertising consent. In the mobile app, open Profile → Settings → Privacy & Data → Ad privacy options to manage advertising consent where applicable. When SeaDays opens this Privacy Policy from inside the iOS/Android app, marketing cookie and advertising consent banners are not shown (app-client mode), so App Tracking Transparency choices are not overridden by a second website cookie prompt.

Children's Privacy

You must be at least 16 to use SeaDays. We do not knowingly collect personal data from anyone under 16. If we learn that we have, we delete it.

International Data Transfers

Your data may be transferred to and processed in countries other than your own. We ensure appropriate safeguards are in place to protect your information in compliance with applicable data protection laws.

Changes to This Policy

We may update this privacy policy periodically. We will notify you of significant changes via email or in-app notification. Continued use of SeaDays after changes constitutes acceptance of the updated policy.

Controller

The controller is Sharan Gangadharan, Lincolnstraße 27, 20359 Hamburg, Deutschland. Email: info@semprog.de. See the Impressum.

Contact Us

If you have questions about this privacy policy or our data practices, contact us: