# Sea Trials - USCG License Exam — Upgrade USCG License > Study tool for U.S. Coast Guard DECK & ENGINE license exams. (iPhone/iPad app by Mariner License Prep, LLC.) - Source: https://appshunter.io/ios/app/sea-trials-uscg-license-exam/id1362793782 (this page in markdown: same URL + `.md`) - Developer: [Mariner License Prep, LLC](https://appshunter.io/developer/1362793781) - Category: Education - Price: Free with in-app purchases - Rating: 4.70/5 from 378 App Store ratings · 125 written reviews indexed - Age rating: 4+ - Requires: iOS 16.0 · 142 MB - Languages: American English - Released: 2018-03-24 - Data updated: 2026-08-20 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/sea-trials-uscg-license-exam/id1362793782/reviews.md ## What is Sea Trials? IMPORTANT: ALL QUESTIONS ARE SOURCED EXCLUSIVELY FROM PUBLICLY AVAILABLE MATERIALS AND USCG MATERIALS SHOWN BELOW: USCG Sample Exams (https://www.dco.uscg.mil/nmc/examinations/) SEA TRIALS IS NOT ASSOCIATED WITH OR ENDORSED BY THE USCG OR ANY GOVERNMENT ENTITY. Sea Trials is your ultimate tool to ace the U.S. Coast Guard DECK & ENGINE Exams for all ratings. Available on web, desktop, and mobile, our platform syncs seamlessly, keeping your study progress intact wherever you go. Updated for 2025, our questions ensure you have the most current information. Completely Free with Unlimited Study Sessions: - Access essential study tools at no cost. - Upgrade only if you need advanced features tailored to enhance your preparation experience. Why Choose Sea Trials: - Study Anywhere, Anytime: Whether on a ship or offline in the middle of the ocean, study without interruptions. - Seamless Sync: Pick up where you left off across Windows, macOS, the website, and mobile apps. - Most Up-to-Date Content: Study with confidence using questions updated for 2025. Core Features (Always Free): - Access to the USCG question bank, updated for 2025. - Official USCG diagrams, providing critical visual aids for your exams. - Real-time scoring for instant feedback on your progress. Unlock Advanced Features with Upgrades: - Build custom practice tests to focus on specific areas and subcategories. - Gain access to step-by-step explanations and hints for every question. - Personalized tutoring with the AI-Powered Chat Genie. - Generate printable tests for offline review. - Advanced performance tracking to identify and improve your weakest areas. Tailored for Your License: - See only the questions relevant to your specific license, ensuring efficient and targeted preparation. Questions Broken Down by Module, Category, and Subcategory: - Study efficiently with well-organized content tailored to your needs. Built for Mariners, By Mariners: - Intuitive design, offline capability, and regular updates make Sea Trials the most reliable tool for mariners preparing for the U.S. Coast Guard exams. Join the tens of thousands of mariners who trusted Sea Trials to ace their exams. Download now and experience the future of exam preparation! Terms of Use: https://seatrials.net/disclaimer ## Key features - USCG question bank - Official USCG diagrams - Real-time scoring - Custom practice tests - AI-Powered Chat Genie - Offline study capability ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium Monthly | $49.99 | per month | | Basic Monthly | $34.99 | per month | | Basic Annually | $199.99 | per year | | Premium Annually | $299.99 | per year | | Basic Monthly | $29.99 | per month | | Premium Monthly | $39.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | 1 Month Access | $9.99 | one-time | | 3 Month Access | $24.99 | one-time | | 6 Month Access | $34.99 | one-time | | 12 Month Access | $54.99 | one-time | ## What do users think of Sea Trials? Overall sentiment: positive **Pros** - 👍 Convenient for studying on the go - 🚀 Efficient and easy to use - 💡 Helpful customer service - 🚀 Offline access for studying - 🚀 Organized and structured study tool - 👍 Clean and intuitive interface - 💡 Useful for tracking progress and missed questions **Cons** - 🐛 Some questions have incorrect answers or explanations - 🔒 Issues with creating new accounts - 💰 Expensive subscription model - 🐛 Bugs with certain features like chart plot tests **Commonly reported bugs** - Login/account creation issues - Questions not recognized as up-to-date - Inconsistent performance across different devices **Most requested features** - Option to study only flagged/bookmarked questions - Ability to shuffle question order - More comprehensive question bank, especially for advanced topics ## Recent user reviews (10 of 125) All indexed reviews: https://appshunter.io/ios/app/sea-trials-uscg-license-exam/id1362793782/reviews.md ### 5/5 — License prep? Look no further *2026-07-28* Currently holding my Chiefmate unlimited oceans, this app was vital to me upgrading. I grew up using upgrade U but there is no comparison. Hammer the general modules on here till you’re making 90’s, in conjunction with lapware later on towards the end before testing and you will do just fine. Remember to test on the practice exams from the USCG website. Those exams will be very similar to the questions you will see exam day. 🫡 ### 5/5 — Thank you!! *2026-07-13* App works much better after the recent fix to the last mega update. I’m studying for my CM/Master Unlimited and this is my go-to app for studying. I love how it tracks your problem areas so you know what needs to be improved. Thank you for taking the time to respond to my last feedback post and fix the issue. You guys are great!! ### 1/5 — App Broke *2026-06-13, version 8.6.9* I downloaded app. Couldnt get it loaded. It konks out when trying to upload a photo for the account. Wont allow an upload. Couldnt use the free trial or anything. ### 5/5 — Passed! (Mate Unlimited GL I) *2026-05-19, version 8.6.9* Just want to thanks to the developers! No way I would’ve passed my tests today without it! Can not recommend this app enough if you’re studying for your exams! ### 5/5 — A+++ *2026-03-15, version 8.6.9* Normally don’t leave reviews but this is better than ChatGPT ### 3/5 — Super Buggy Recent Updates *2026-02-28, version 8.6.6* Switched to vibe coding the app? Numerous recent updates and frequent app crashes. ### 5/5 — C/E limited *2026-02-13, version 8.6.2* This is all you need to pass the 4 exams the app is great and is way more relevant information than other platforms. Cannot recommend them enough.full disclosure i tried the books and MA and was far superior in every aspect.I rarely leave reviews but this deserves it ### 5/5 — Good Customer Service *2026-01-29* I was having issues with the UI and the app crashing. I reached out to customer service and they helped me resolve all of these issues. They were quick to respond and clear in their explanation on how to fix the problems I was having. I highly recommend this app. Currently studying for my 500ton mate’s tests. ### 3/5 — Engineering electronics *2026-01-25, version 8.4.6* Using app for studding DDE the general and safety stability and fire test is spot on. The electrical isn’t spot on at all maybe only a few questions I got on my test. Other wise it’s a great tool ### 4/5 — Please fix the audio button *2026-01-24* The audio button for the tests is gone or getting blocked by the numbers under the question. Please fix this. I’m a really slow reader and the audio function helped me rip through a bunch of questions. Now It takes me much longer to get through the same amount of test questions. ## Frequently asked questions about Sea Trials ### What is Sea Trials? Sea Trials is a study tool designed to help mariners prepare for U.S. Coast Guard DECK and ENGINE license exams. It provides access to an updated question bank, official diagrams, and real-time scoring. The app is available on web, desktop, and mobile platforms with seamless syncing of study progress. ### What are the core features of Sea Trials? The core features, which are always free, include access to the USCG question bank updated for 2025, official USCG diagrams for visual aids, and real-time scoring to track your progress. The app also offers offline study capability, allowing you to study anywhere without an internet connection. ### How much does Sea Trials cost? The app offers a completely free version with unlimited study sessions, providing access to essential study tools. Advanced features, such as building custom practice tests, accessing step-by-step explanations, AI-powered tutoring, and advanced performance tracking, are available through upgrades. ### Is Sea Trials available on different devices? Yes, Sea Trials is available on web, desktop (Windows and macOS), and mobile platforms. Your study progress syncs seamlessly across all these platforms, allowing you to pick up where you left off regardless of the device you are using. ### Who is the target audience for Sea Trials? This app is specifically designed for mariners who are preparing to take the U.S. Coast Guard DECK and ENGINE license examinations. It aims to provide an efficient and targeted preparation experience by organizing questions by module, category, and subcategory, and allowing users to focus on questions relevant to their specific license. ## Version history (last 5 releases) ### 8.9.2 — 2026-08-13 Bug fixes and improvements. ### 8.9.1 — 2026-08-05 Bug fixes and improvements. ### 8.9.0 — 2026-07-27 Bug fixes and improvements. ### 8.8.9 — 2026-07-24 Bug fixes and improvements. ### 8.8.8 — 2026-07-22 Bug fixes and improvements. ## Apps similar to Sea Trials | App | Rating | Price | Category | | --- | --- | --- | --- | | [The Nautical School ExamTutor+](https://appshunter.io/ios/app/the-nautical-school-examtutor-plus/id1309809624) | 4.1 (24) | Free | Education | | [MLS eCampus](https://appshunter.io/ios/app/mls-ecampus/id6447906086) | 1.6 (10) | Free | Education | | [BoatSchool](https://appshunter.io/ios/app/boatschool/id1567807599) | 4.2 (15) | $19.99 | Education | | [USCG Exam Prep](https://appshunter.io/ios/app/uscg-exam-prep/id1579535924) | 3.4 (10) | Free | Education | | [License to Sail](https://appshunter.io/ios/app/license-to-sail/id1605521074) | 3.8 (13) | Free | Education | | [Master-Nav](https://appshunter.io/ios/app/master-nav/id1602390396) | 4.7 (94) | $1.99 | Education | ## Related topics [sea trials](https://appshunter.io/ios/topics/sea-trials) · [captain license](https://appshunter.io/ios/topics/captain-license) · [the nautical school](https://appshunter.io/ios/topics/the-nautical-school) · [uscg exam prep](https://appshunter.io/ios/topics/uscg-exam-prep) · [uscg bootcamp prep kit](https://appshunter.io/ios/topics/uscg-bootcamp-prep-kit) · [uscg oupv exam prep 2026](https://appshunter.io/ios/topics/uscg-oupv-exam-prep-2026) · [uscg hswl](https://appshunter.io/ios/topics/uscg-hswl) · [uscg](https://appshunter.io/ios/topics/uscg) · [license exam prep](https://appshunter.io/ios/topics/license-exam-prep) · [navigation rules](https://appshunter.io/ios/topics/navigation-rules) · [nautical rules](https://appshunter.io/ios/topics/nautical-rules) · [uscg rules of the road](https://appshunter.io/ios/topics/uscg-rules-of-the-road) · [licensing exam](https://appshunter.io/ios/topics/licensing-exam) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-20.*