Terms of Use

Last updated: June 5, 2026

Purpose of the app

CES Test for Deck on Oil Tankers is an independent self-study and practice app for maritime learners. It is not an official examination provider and does not issue maritime certificates.

Subscriptions

PRO access may be offered through monthly and yearly auto-renewable subscriptions. Prices are shown in the app before purchase and may vary by App Store country or region.

Payments are charged to your Apple ID account. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current billing period. You can manage or cancel subscriptions in your Apple ID subscription settings.

Educational use only

The app is provided for practice and educational purposes. It does not guarantee examination results, employment outcomes, certification, or regulatory approval.

Availability

Some features, including purchase, restore purchase, price loading, and subscription validation, require an internet connection.

Contact

For support, contact: cessupport@proton.me