Help & support

The app is free to download and includes a free portion of every part (Learn, Train and Test) so you can try it. Full Access (all lessons, all practice questions and unlimited mock exams) is a one-time in-app purchase. No subscription, no recurring charge.

No. There's no sign-up, no email, no password. Your progress is stored on your device. That also means progress doesn't sync between devices yet; that's planned for a later update.

Nautly is an iPhone app. It's designed for a current iPhone running a recent version of iOS.

Open the app, go to the "Get the full app" screen (or Settings), and tap to purchase. Payment is handled entirely by Apple through your Apple Account.

Tap "Already purchased? Restore" on the unlock screen (also in Settings). Restore re-checks your Apple Account and unlocks Full Access again at no cost. Make sure you're signed in with the same Apple Account you bought it with.

First, confirm you're on the same Apple Account, then tap Restore, then check your connection and try again. If Apple charged you but the app still won't unlock, email us with your approximate purchase date and country (please don't send card numbers) and we'll sort it out.

Purchases go through Apple, so refunds are handled by Apple, not by us. Request one at reportaproblem.apple.com (or Settings → your name → Media & Purchases → Purchase History). If something about the app prompted you to ask, tell us too; we read every message.

The exam is Croatian; the app is being localized to Croatian and German alongside English. You can switch language in Settings. At launch some content may still be in English while the translation is completed.

Yes. Learn, Train and Test all work without a connection. The only time the app talks to the internet is the optional "I took my exam" feedback you can choose to send afterwards.

No study aid can guarantee that. We base content on official Croatian sources and hedge anything we can't confirm, but the only authoritative source is the Lučka kapetanija (harbour master's office) and current regulations, so always verify specifics there. If you spot an error, please tell us; corrections help everyone.

Please do. After a mock exam the app offers an optional, anonymous "I took my exam" form (pass/fail, an optional rating, and what the examiner actually asked). It's the single most useful thing for improving the app, and it's tied only to a random per-install ID, never to your identity.

Almost none. Study progress and scores stay on your device. The only data that ever leaves is what you choose to send in the optional post-exam feedback, and it isn't linked to your identity. Full detail is in our Privacy Policy.