Last updated: 27 June 2026

We wrote this policy in plain language on purpose. No legal jargon, no hidden surprises — just a clear explanation of what we collect, why, and what you can do about it.

Who we are

Tax Day Tracker is developed by Ragnar Apps, based in Portugal. If you have any questions about this policy or your data, you can reach us at taxdaytracker@ragnarapps.com.

What we collect

Trip and earnings data — vessel names, companies, countries, dates, pay rates, and earnings you enter. This is stored on your device. We do not receive or store it, with one narrow exception explained under "Exporting to Excel" below.

Profile information (optional) — if you choose to fill in your profile, we collect:

• Your name
• Your email address
• Your job title (e.g. Saturation Diver, Rigger)
• Your years of experience

You don't have to fill in any of this to use the app. Trip tracking, the 183-day counter, the 60-day streak, the SAT timer, backup, and Excel export all work without a profile.

We do not collect:

• Your location
• Your contacts, photos, or other apps' data
• Payment card details (subscriptions, if offered, are handled by Google Play / Apple, who have their own privacy policies)

How we use your data

If you fill in your profile and email address, depending on which boxes you tick, we may use it to:

1. Send you app updates and news — only if you tick this box. You can untick it anytime in your Profile.
2. Share your details with offshore recruitment partners — only if you tick this box. This means a manning agency or recruiter looking for someone with your job title and experience level may receive your name, email, job title, and years of experience so they can contact you about opportunities.
3. Anonymised industry research — only if you tick this box. This means your job title, years of experience, and general usage patterns (not your name or email) may be used to understand trends in the offshore industry — e.g. "X% of sat divers spend over 183 days offshore per year." This data cannot be traced back to you.

Each of these is a separate checkbox. Ticking one does not tick the others. You can change your mind at any time in the Profile screen.

Where your data is stored

Your trip and earnings data stays on your device. We don't have a copy.

Your profile details — only if you fill them in and tick at least one consent box — are sent to and stored in our dedicated Tax Day Tracker database (hosted on Supabase). We store only your name, email, job title, years of experience, and which boxes you ticked. This database is isolated from our other systems and is used solely to contact you in the ways you consented to.

Exporting to Excel

When you use the Excel export feature, your trip and earnings data is sent to our server to generate the spreadsheet file, which is then returned to your device. We do not store this data — it passes through only to build your file, and is not retained afterwards. This step requires an internet connection.

To convert earnings between currencies, the app also requests historical exchange rates from Frankfurter, a free public exchange-rate service. Only a date and currency codes are sent for this — none of your personal or earnings data is sent to Frankfurter.

Moving your data between devices

The app lets you save a backup file of your own data and import it onto another device. This file is created and moved entirely by you (via your own email, messaging, or cloud storage). It does not pass through us.

How long we keep your data

• Trip data on your device: kept until you delete it or uninstall the app
• Profile data in our database: kept until you request deletion (see below) or for as long as your consent remains active

Your rights

You can, at any time:

• View and edit your profile information in the app
• Withdraw consent by unticking any of the consent boxes in your Profile
• Request full deletion of your profile data by emailing us at taxdaytracker@ragnarapps.com — we'll remove it within 30 days
• Export your trip data at any time via the Excel export or backup feature

If you're in the EU/EEA or UK, these rights are guaranteed under GDPR. If you're elsewhere, we apply the same standard to everyone regardless of where you live.

Subscriptions

If Tax Day Tracker offers a paid tier and you subscribe, your payment is handled entirely by Google Play or the Apple App Store. We do not see or store your card details. We only receive confirmation that you have an active subscription.

Children

Tax Day Tracker is intended for offshore workers, divers, and maritime crew — all of whom must be adults to work in these industries. We do not knowingly collect data from anyone under 18.

Changes to this policy

If we make significant changes — especially anything affecting the optional consent boxes — we'll notify you in the app and ask you to review your choices again.

Contact

Questions, concerns, or deletion requests: taxdaytracker@ragnarapps.com

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This policy is written to be honest and easy to understand. If anything is unclear, please email us and we'll explain it properly — and probably rewrite this section to be clearer for the next person too.