Terms of Use

Last updated: 16 September 2026

1.Acceptance of terms

By downloading, installing or using Deck Aptitude Test (“the App”), you agree to these Terms of Use. If you do not agree, please do not use the App. If you are using it on behalf of someone else, a student or a class for example, you confirm you have the authority to accept these terms for them.

These terms sit alongside the Privacy Policy and Apple’s own Licensed Application End User Licence Agreement, which applies to every app distributed through the App Store.

2.What Deck Aptitude Test is

Deck Aptitude Test is a maritime aptitude trainer. It offers 35 training modules across six categories: Watchkeeping, Navigation, Rules & Signals, Engine Room, Comms & Codes and Exam Core. Modules cover formats used in maritime selection and sponsorship testing, from navigation lights, buoyage, sound signals and signal flags to radar plotting, mental arithmetic, verbal reasoning and spatial tests.

Questions are generated by rule engines rather than drawn from a fixed bank, sessions are scored, and difficulty is organised into levels that tighten as you advance. The App can tailor its module hub to a chosen career track: Deck Cadet / OOW, Marine Engineer / ETO, or VTS Operator / Pilot. Answers come with explanations, and several modules include unscored Learn modes.

3.Important disclaimer

4.Not for navigation

5.Audio and hearing safety

Several modules play audio and some are designed for headphones, including spoken figures, radio-style traffic and synthesised whistle signals. Protect your hearing. Set the volume so audio is comfortable, and never raise it to make a difficult item easier to hear. Take regular breaks. On iOS you can cap output in Settings → Sounds & Haptics → Headphone Safety, and we recommend leaving that enabled. You are responsible for the volume at which you choose to listen.

6.Eligibility

You may use the App if you are able to form a binding contract where you live, or if you have the consent of a parent or guardian.

The App has no accounts and no sign-in of any kind. Your progress is stored on your device, which means it is yours alone, and also that deleting the App deletes it. Keep an iPhone backup if that matters to you. The App does send anonymous usage statistics; see the Privacy Policy.

7.Free plays, levels and progress

Lower levels of each module include a number of free plays; higher levels require Deck Pro. Free plays, levels, scores and mastery records are game mechanics, not property. They:

• have no monetary value and cannot be exchanged for money, goods or services;
• cannot be sold, transferred or traded, inside or outside the App;
• are licensed for use within the App, not owned by you;
• may be adjusted, rebalanced, reset or discontinued as we tune the App.

Spending a free play, or losing progress because you changed or reset your device, does not entitle you to a refund or to compensation. Because progress is stored only on your device, we cannot recover it for you. We may change how many free plays each level includes and which content is free.

8.Deck Pro: subscription and lifetime purchase

Deck Pro unlocks unlimited training across all levels of all modules. It is offered as an auto-renewing weekly subscription and as a one-time lifetime purchase. The price for your region is set through the App Store and is always shown in the App, in your own currency, before you confirm.

• Billing. Payment is charged to your App Store account at confirmation of purchase. We never handle your payment details.
• Renewal. The weekly subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Renewal is charged within 24 hours of the end of that period. The lifetime purchase does not renew; it is a single charge.
• Cancelling. Manage or cancel the subscription in iOS Settings → your name → Subscriptions → Deck Aptitude Test. Cancelling stops the next renewal; you keep Pro until the paid period ends. Deleting the App does not cancel a subscription.
• Refunds. Purchases are handled by Apple and are subject to Apple’s refund policy. We cannot issue refunds directly, but we will help you with a request. Apple’s form is at reportaproblem.apple.com.
• Price changes. We may change prices. Apple will notify you and, where required, ask for your consent before a changed price applies to a renewal. A price change never affects a lifetime purchase already made.
• Restoring. Use Restore Purchases in the App, signed in with the same Apple ID you bought with, to restore Pro on a new device. This restores the entitlement only; practice progress is stored on the old device and does not transfer.
• Changes to what Pro includes. We may add to Pro, and may move a feature between tiers. We will not remove a headline benefit from an active subscription period without offering you a way out. For lifetime purchasers, Pro means the Pro tier of the App as it exists and evolves; we may change, add or retire individual features over time, but we will not strip the lifetime tier of its substance.

9.Intellectual property

The App and everything in it, including the software, the interface design, the Deck Aptitude Test name and logo, the module structure, the question generators, the written copy and the artwork, belongs to us or to our licensors and is protected by copyright and other intellectual property law. References to publicly known conventions such as the COLREGs, IALA buoyage or the International Code of Signals describe subject matter; our renderings and teaching material are our own.

You are granted a personal, revocable, non-exclusive, non-transferable licence to use the App on devices you own or control, for your own training. You may not:

• copy, resell, sublicense, rent or redistribute the App or its content;
• extract, screenshot at scale, re-upload or otherwise reuse the question material, including in your own courses or teaching products;
• use the App or its content to build a competing product, or to train a machine-learning model;
• remove or obscure any proprietary notice.

Your own progress data is yours. Feedback and suggestions you send us may be used without obligation or compensation, and we appreciate them.

10.Acceptable use

You agree not to:

• reverse engineer, decompile or disassemble the App, except where that right cannot lawfully be excluded;
• tamper with scoring, free plays, purchases or entitlements, or use modified clients, automation or emulators to obtain progress you did not earn;
• attempt to gain unauthorised access to our systems or to another user’s device or data;
• interfere with the service, including by overloading it or probing it for vulnerabilities without permission;
• present a score, level or mastery rating from the App as a professional qualification, an official test result or a medical assessment;
• use the App in a way that breaks the law where you are.

We may suspend or terminate access if you do any of these.

11.Third-party services

The App relies on services operated by others: Apple for distribution, payments and subscriptions, Google (Firebase Analytics and Cloud Firestore) for anonymous usage statistics and feedback, and RevenueCat for purchase validation. None of them receives anything that identifies you; what each one handles is set out in our Privacy Policy, and their own terms govern their side of it. We are not responsible for outages, changes or failures in those services, though we will do what we reasonably can to work around them.

12.Availability and changes to the App

We aim to keep Deck Aptitude Test available and working, but we do not promise uninterrupted service. We may add, change or remove modules, levels, question types or features; we may require you to update to a supported version; and we may discontinue support for older operating systems. We may stop offering the App altogether, in which case we will give reasonable notice and stop charging subscriptions.

13.Limitation of liability

The App is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including any implied warranty of merchantability, fitness for a particular purpose, or non-infringement. To the fullest extent permitted by law:

• we do not warrant that the App will be error-free, uninterrupted, or free of inaccuracies in its questions, target answers or scoring;
• we are not liable for the outcome of any examination, application, interview or medical assessment, whatever part the App played in your preparation;
• we are not liable for decisions of any kind made in reliance on the App’s content, including navigational decisions, which section 4 forbids;
• we are not liable for hearing discomfort resulting from the volume at which you choose to listen, or from ignoring the guidance in section 5;
• we are not liable for lost progress, free plays or records, however caused;
• we are not liable for indirect, incidental, special or consequential damages, or for loss of profit, data or goodwill;
• our total liability arising from your use of the App will not exceed the greater of the amount you paid us in the twelve months before the claim, or ten US dollars.

Nothing in these terms excludes liability that cannot lawfully be excluded, including liability for death or personal injury caused by negligence, for fraud, or under mandatory consumer protection law where you live. If you are a consumer, your statutory rights are unaffected.

14.Termination

You can stop using the App at any time by deleting it. We may suspend or terminate your access if you materially breach these terms, and Apple may do so under its own agreement with you. On termination, your licence ends; sections that by their nature should survive, including intellectual property, limitation of liability and governing law, survive.

15.Modifications to these terms

We may update these terms as the App evolves. The date at the top always reflects the current version. If a change is material, we will tell you inside the App or on this site before it takes effect. Continuing to use the App after a change means you accept the updated terms.

16.Governing law

These terms are governed by the laws of the Republic of Turkey, without regard to conflict-of-law rules. Disputes are subject to the exclusive jurisdiction of the courts of Istanbul, Turkey. If you are a consumer, this does not deprive you of protections or forums granted by the mandatory law of the place where you live.

17.Contact

Questions about these terms can go to the address on our contact page. A person reads it, usually within two working days.