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Captain's Ledger — USCG Sea Service Logbook

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We're here to help. Email us and we'll respond within 1–2 business days:

Frequently Asked Questions

How is my data stored?

All your sea service records are stored locally on your device. Nothing is sent to a server. To back up your data, use the Export feature in the app to save a copy.

What counts as a qualifying sea service day?

The app follows USCG guidelines: a qualifying day requires a minimum of 4 hours underway on a vessel. Days are counted by calendar date, not by hours accumulated across multiple outings on the same day.

What are the USCG license requirements?

Requirements vary by license type (OUPV / Six-Pack, 25-ton, 50-ton, 100-ton, etc.). The app tracks qualifying sea service days and displays progress toward your selected license goal. Always verify current requirements with the USCG National Maritime Center.

How do I cancel my Pro subscription?

Subscriptions are managed through Apple or Google. To cancel:

iPhone/iPad: Settings → your name → Subscriptions → Captain's Ledger → Cancel
Android: Google Play → Profile → Payments & subscriptions → Subscriptions → Captain's Ledger → Cancel

I lost my data after reinstalling. Can I recover it?

Because data is stored locally, an uninstall will remove it. We recommend using the Export feature regularly to keep a backup. We cannot recover data that was not exported.

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