Privacy Policy – Seafarers Tax Calculator
Effective Date: 17 October 2025
Developer: William H. Cardno
Contact: seataxcalc@gmail.com
Jurisdiction: United Kingdom
---
Overview
Seafarers Tax Calculator helps UK seafarers track voyages, qualifying days, and Seafarers’ Earnings Deduction (SED) eligibility.
We respect your privacy and are committed to protecting your personal information.
---
Information We Collect
User-entered data: voyage dates, vessel names, ports, and holiday markers entered by you.
Local storage only: All data is stored locally on your device using secure on-device storage. We do not transmit, share, or upload your data to any server.
Purchase information: If you upgrade to Premium, payments are processed securely through Google Play Billing. We do not receive or store payment details.
---
How We Use Your Data
To calculate qualifying days, days-in-hand, and fail-date forecasts.
To enable exports you initiate (CSV / PDF) and local JSON backups/imports.
To schedule local reminders if enabled — reminder data remains on your device.
---
Data Sharing
We do not sell, share, or transmit your personal data to third parties.
Your information stays private on your own
device unless you manually export or back it up elsewhere.
---
Data Security & Retention
Your voyage data is saved on your device.
Deleting the app or using “Clear All Voyages” removes all local data.
If you export files (CSV, PDF, JSON), their security depends on where you store them.
---
Children’s Privacy
This app is intended for adult users.
We do not knowingly collect data from children under 13 years of age.
---
Your Rights
Since no data is stored on our servers, you can exercise full control locally — by editing or deleting voyage entries and backups directly in the app.
---
Third-Party Services
Google Play Billing: manages Premium
payments under Google’s Privacy Policy.
Operating System Services: the app may use standard OS functions (e.g., file access for exports) under your device manufacturer’s privacy terms.
---
Changes to This Policy
We may occasionally update this Privacy Policy.
Any revisions will appear at the same URL with a new effective date.
---
Contact
For questions about this Privacy Policy, email us at:
📧 seataxcalc@gmail.com