Home › Education
Information
Preview 2 platforms
iPhone 5 images
iPad 3 images
What’s New Version 2.26.23
- Fixed Explanation View Formulas
Description
License to Sail: Prepare for Your USCG License Exams
License to Sail is the ultimate study companion for U.S. Merchant Mariners preparing for their Coast Guard license exams. Built by a mariner, for mariners, it helps you master every question — anytime, anywhere.
Why Choose License to Sail
Most other prep tools are outdated websites or USB drives stuck in the early 2000s. License to Sail is modern, mobile, and made for the Apple ecosystem. Study seamlessly on iPhone, iPad, or Mac — online or offline — with a clean, intuitive interface designed specifically for Apple devices.
Best of all, License to Sail is proudly made in America by a U.S. Merchant Mariner for fellow mariners. Don’t settle for offshore imitators — this is the genuine article.
How It Works
Start by selecting your department and license type. License to Sail automatically tailors your study plan, focusing only on what matters — no filler, no repeated questions.
Four intuitive tabs guide your study journey:
Info
Stay up to date with the latest app features, news, and updates.
Plan
Set your testing date to unlock a personalized study timeline. See exactly how many questions to cover each day and track your progress. The Daily Anchor feature shuffles questions from all subjects, giving you a smart, language-learning-style experience that keeps you sharp.
Study
Dive into the full question bank with four learning modes designed to help you learn, retain, and test confidently.
References
Access downloadable PDF reference materials that mirror what’s available during your actual exams — perfect for reviewing on a separate device or offline.
Intelligent Study Support
License to Sail uses Apple Intelligence to help you gain personalized insights into your study progress — identifying strengths, spotting weak areas, and helping you stay on track toward exam readiness.
When you need deeper understanding, tap into Neptune AI, your built-in study assistant, to ask detailed questions about any test item and get clear explanations written in plain language.
Study Modes
Study Bank
Access every question by subject or illustration (like math problems). View answers, bookmark progress, and mark what you’ve mastered. If you’re stuck, tap the Brain button for AI-generated explanations, or ask Neptune AI for deeper insights.
Elimination
Learn by process of elimination. Missed questions are set aside until you master them — an effective way to reinforce weak areas.
Review
Quickly revisit missed questions from Elimination mode without waiting for them to resurface.
Test
Simulate the real exam with custom or sample tests. Swipe left to generate printable PDF tests for offline practice.
All questions are sourced directly from official NMC sample tests.
License to Sail is not affiliated with the U.S. Coast Guard.
Subscription Details
Try License to Sail free as a new user.
Monthly Plan: $9.99/month
Annual Plan: $39.99/year (best value)
Payment is charged to your iTunes Account at confirmation of purchase. Subscriptions automatically renew unless canceled at least 24 hours before renewal. Manage or cancel anytime in your App Store account settings.
Privacy Policy: https://www.licensetosail.app/privacy-policy/
Terms of Use: https://www.licensetosail.app/terms/
In-App Purchases US pricing
All Access Subscriptions Subscription
Monthly Subscription · Monthly 14-day free trial$9.99
Annual Subscription · Yearly 1-month free trial$39.99
One-Time Purchases
Engine Generals$9.99
Engine Safety$9.99
Engine Electricity$9.99
Engine Gas Turbines$9.99
Engine Steam$9.99
Engine Motors$9.99
Deck Unlimited Bundle$39.99
Engine Unlimited Bundle$39.99
Capabilities
In-App Purchases
Accessibility
ipadiphonemacrealityDevicetvoswatch
Version history 25 versions
Build 885481716v2.26.232026-05-11 03:00:43
- Fixed Explanation View Formulas
Build 884741239v2.26.222026-04-27 15:58:01
- We’ve enhanced Weak Area Analysis under the hood.
- Elimination Mode has been improved on completion detection.
- Bug Fixes with Illustrations and Solutions
- We are continuing to improve the app behind the scenes.
Build 883716622v2.26.212026-03-24 22:17:48
- We are continuing to optimize the question banks. Some modules may see significant reduction in questions to study. We've been analyzing each module to figure out what questions matter the most.
Build 883159216v2.26.202026-03-09 19:38:21
- Verified Bug Fix. The verified detection in Study Bank yielded way too many verified questions what weren't verified. Verified questions are questions that have shown up in the example tests and closely related questions.
- Completed auditing categories. However the work will continue on refining the question banks.
Build 882984030v2.26.192026-03-03 18:22:49
Continuing to audit questions and modules in order to shorten the amount of questions to study for.
There were missing an unnecessary endorsements in the setup that were fixed.
Build 882608670v2.26.182026-03-01 17:27:38
- Cleaning up the UI once again removing the color changing background
- Adjusted how questions are pulled for each subject so there's no repeat questions between subjects
- Continuing to update question banks by auditing each module topics (categories) so that necessary questions to study for are eliminated. Be sure to hit that refresh button in the Info tab, your question bank to study might get shorter.
- Some illustrations were missing such as refers. To refresh, go to settings and tap on Sync Illustrations.
- All explainers have been refreshed to Claude Haiku 4.5. They are much shorter to reduce space. However if you need more help understanding, use Neptune.
Build 882458776v2.26.172026-02-14 17:10:38
- In case you missed it, License to Sail now works with Supabase so question updates can happen faster!
- We are continuing to analyze the question banks and reduce duplicate questions and unecessary questions for you to study. A lot of this is done with care by hand to ensure nothing gets accidentally deleted.
- Made adjustments to syncing question banks in the Dashboard. Illustrations and Solutions syncing have been moved to the settings menu as they aren't updated too often. At any time, you can go to the settings menu to sync illustrations and solutions.
Build 882347730v2.26.162026-02-11 03:00:20
- The L2S Question Database is now hosted on Supabase.
- Question banks now sync to the cloud for more frequent updates.
- Illustrations also sync to the cloud.
- If you submit an issue with a question, it should get resolved a lot faster.
- We are also trimming the fat! Question banks are shrinking as we eliminate duplicates.
- If two subjects happen to have the same question, it will be marked missed or known across both subjects.
- Test History added to Sample Tests in Test mode.
- Example Test Insight has been added to Study Bank. This lets you visually see our USCG Test Emulation algorithm in action. So you know what questions have the highest probability of showing up on the exam.
Build 881504416v2.26.152026-01-16 08:26:19
Happy New Year!
Question Bank Updates and Bug Fixes
Build 880892805v2.26.142025-12-22 03:15:04
Bug Fixes and Improvements
-Weak Area Analysis works when you've 100% a subject
-Daily Anchor works when you 100% a subject
Build 880696136v2.26.132025-12-18 20:16:41
Happy Holidays!
New Voice Settings
- You can now change the voice when the question and answer are being spoken to you through Study Bank.
UI Adjustments
Build 880411040v2.26.122025-12-10 00:08:55
UI Adjustments and Bug Fixes
Build 880283446v2.26.112025-12-03 14:25:51
UI Adjustments
New Info Blocks (iOS 26)
- Video Tutorials: Get a better understanding of the app.
- Survey: An Optional survey for the developer to get a better understanding of the audience to improve the app.
Build 880006456v2.26.102025-11-23 22:08:58
UI Adjustments
-Onboarding Improved fixing cutoff license text and adding module numbers to final selection review
-Adjusted answer button highlights
Added Daily Reminder Notification option in Plan
Build 879953991v2.26.92025-11-21 19:04:26
Bug Fixes
Build 879918802v2.26.82025-11-20 17:52:59
Bug Fixes
-Fixed Crashing of Sample Tests for Subjects with Second Modules.
-Updated Deck License List: There was a misinterpretation with the Master and Mate 500-1600 from the examination guide. 1600 only presided. 500 has been added along with upgrading from Towing to 500 GRT.
Build 879567988v2.26.72025-11-08 00:34:23
-Added New Licenses with (Motors Only): These are for those who don't need to take the Steam or Gas Turbine Exams.
-More UI Adjustments
Build 879211041v2.26.62025-10-28 01:41:43
Two Big Features Added!!!
Introducing Weak Area Analysis
- Apple Intelligence takes your question data analyzes your weak areas for each subject.
- Receive a Readiness Score for each subject to determine whether you are ready to take the exams.
- View your most missed questions and categories.
- Get recommendations on what you need to do to master the subject.
Test History
- Starting with this update, when you complete an exam, your answer choices will be saved so that you can go back at any time to see what you answered.
- To view your past attempts, go to Generated Tests under the Tests Menu, tap on the generated test, you will then see a menu, tap View History, and tap on the test attempt.
- This works for category tests as well.
More UI adjustments have been made to improve the end user experience.
You now get a little notification when you've completed your daily quota.
The code structure is being cleaned up behind the scenes and has undergone extensive testing before publishing. If you find any weird behaviors, please report it!
Build 879035634v2.26.52025-10-21 11:48:49
-2026 Example Test additions Complete!
-Reverted back to ChatGPT 4o mini model for Explainers since GPT 5 was producing blank explainers.
-Bug Fixes for iOS 18 UI, it is recommended to update to the latest OS for the best experience
Build 878969611v2.26.42025-10-16 17:47:20
Continuing Deck Question Updates
Fixed Neptune AI issues.
Backend Cleaning
Build 878871451v2.26.32025-10-13 19:29:07
Continuing to update Deck Question Banks and 2026 Example Tests
To see what's new, go into the Study Bank and filter with the Circle Plus button on the far right and you'll see questions updated for 2026. Some questions are old questions that have been rewritten. There's been a few new illustrations that have been added such as D054NG.
Build 878661259v2.26.22025-10-06 09:37:55
-2026 Deck Sample Tests Added
-Question Bank Updates
-Some New Illustrations for Engineering Added
-Continuing to add 2026 Deck Sample Tests
Build 878511538v2.26.12025-09-30 03:15:06
2026 Sample Test additions for Engineering Complete!
2026 Sample Test additions for Deck in progress...
The question banks are currently being refined to eliminate unecessary material.
Build 876907035v2.262025-09-16 16:31:23
-Season 2026 is here! New example tests are rolling in!
-UI adjustments have been made to better work with iOS 26's Liquid Glass.
-Neptune now works offline thanks to the power of Apple Intelligence in iOS 26. If you're grandfathered in without a subscription, you can now use Neptune using the onboard AI model. Subscribers can choose between device and ChatGPT.
-Minimum iOS 18 now required. iOS 26 recommended for the best experience.
-Left handed option added in Settings for the note pad in Study.
-Added SubCategories (work in progress)
-Many more small tweaks have been made
Build 875507667v2.25.192025-06-11 22:27:15
-Restructured Endorsements to align with the USCG Exam Guide. This was pointed out by a user that was trying to study for their Master 1600 Oceans from a 2nd Unlimited License, but only had to take two modules when the app suggested too many to study for. Now up to 129 Options when Deciding what Endorsement to Study for.
-Sample Tests are now grouped under their respective module in Test Mode.
-Question Bank updates made to improve accuracy of question categories.
-Please continue to submit your feedback!
-Updates are less frequent over the Summer.
Price history by region
Currency
Show
Columns
Search
Availability 1 of 148 storefronts
| Region | Language | Price | Ratings | Avg | Version |
|---|---|---|---|---|---|
US | en-US | Free | 13 | 3.8 | 2.26.23 |
Not available in: AE, AF, AG, AI, AO, AR, AT, AU, AZ, BA, BB, BE, BF, BJ, BM, BN, BO, BR, BS, BT, BW, BZ, CA, CD, CG, CH, CI, CL, CM, CN, CO, CR, CV, DE, DK, DM, DO, DZ, EC, EG, ES, FI, FJ, FM, FR, GA, GB, GD, GE, GH, GM, GT, GW, GY, HK, HN, HU, ID, IE, IL, IN, IQ, IT, JM, JO, JP, KE, KG, KH, KN, KR, KW, KY, LA, LB, LC, LK, LR, LU, LV, LY, MA, ME, MG, ML, MM, MN, MR, MS, MU, MV, MW, MX, MY, MZ, NA, NE, NG, NI, NL, NO, NP, NR, NZ, OM, PA, PE, PG, PH, PK, PT, PW, PY, RO, RW, SA, SB, SC, SE, SG, SL, SN, SR, ST, SV, SZ, TC, TD, TH, TM, TN, TO, TR, TT, TW, TZ, UG, UY, UZ, VC, VE, VG, VN, VU, XK, YE, ZA
Change log 29 changes · US
✎
releaseNotes updated
- Fixed Explanation View Formulas
✎
description updated
License to Sail: Prepare for Your USCG License Exams
License to Sail is the ultimate study companion for U.S. Merchant Mariners preparing for their Coast Guard
✎
subtitle updated
USCG Examination Prep
✎
name updated
License to Sail
◆
Version 2.26.23 released
- Fixed Explanation View Formulas
◆
Version 2.26.22 released
- We’ve enhanced Weak Area Analysis under the hood.
- Elimination Mode has been improved on completion detection.
- Bug Fixes with Illustrations and Solutions
- We are continuing to improve the app behind the scenes.
◆
Version 2.26.21 released
- We are continuing to optimize the question banks. Some modules may see significant reduction in questions to study. We've been analyzing each module to figure out what questions matter the most.
◆
Version 2.26.20 released
- Verified Bug Fix. The verified detection in Study Bank yielded way too many verified questions what weren't verified. Verified questions are questions that have shown up in the example tests and closely related questions.
- Completed audi
◆
Version 2.26.19 released
Continuing to audit questions and modules in order to shorten the amount of questions to study for.
There were missing an unnecessary endorsements in the setup that were fixed.
◆
Version 2.26.18 released
- Cleaning up the UI once again removing the color changing background
- Adjusted how questions are pulled for each subject so there's no repeat questions between subjects
- Continuing to update question banks by auditing each module topics
◆
Version 2.26.17 released
- In case you missed it, License to Sail now works with Supabase so question updates can happen faster!
- We are continuing to analyze the question banks and reduce duplicate questions and unecessary questions for you to study. A lot of thi
◆
Version 2.26.16 released
- The L2S Question Database is now hosted on Supabase.
- Question banks now sync to the cloud for more frequent updates.
- Illustrations also sync to the cloud.
- If you submit an issue with a question, it should get resolved a lot faster.
◆
Version 2.26.15 released
Happy New Year!
Question Bank Updates and Bug Fixes
◆
Version 2.26.14 released
Bug Fixes and Improvements
-Weak Area Analysis works when you've 100% a subject
-Daily Anchor works when you 100% a subject
◆
Version 2.26.13 released
Happy Holidays!
New Voice Settings
- You can now change the voice when the question and answer are being spoken to you through Study Bank.
UI Adjustments
◆
Version 2.26.12 released
UI Adjustments and Bug Fixes
◆
Version 2.26.11 released
UI Adjustments
New Info Blocks (iOS 26)
- Video Tutorials: Get a better understanding of the app.
- Survey: An Optional survey for the developer to get a better understanding of the audience to improve the app.
◆
Version 2.26.10 released
UI Adjustments
-Onboarding Improved fixing cutoff license text and adding module numbers to final selection review
-Adjusted answer button highlights
Added Daily Reminder Notification option in Plan
◆
Version 2.26.9 released
Bug Fixes
◆
Version 2.26.8 released
Bug Fixes
-Fixed Crashing of Sample Tests for Subjects with Second Modules.
-Updated Deck License List: There was a misinterpretation with the Master and Mate 500-1600 from the examination guide. 1600 only presided. 500 has been added along
◆
Version 2.26.7 released
-Added New Licenses with (Motors Only): These are for those who don't need to take the Steam or Gas Turbine Exams.
-More UI Adjustments
◆
Version 2.26.6 released
Two Big Features Added!!!
Introducing Weak Area Analysis
- Apple Intelligence takes your question data analyzes your weak areas for each subject.
- Receive a Readiness Score for each subject to determine whether you are ready to take the e
◆
Version 2.26.5 released
-2026 Example Test additions Complete!
-Reverted back to ChatGPT 4o mini model for Explainers since GPT 5 was producing blank explainers.
-Bug Fixes for iOS 18 UI, it is recommended to update to the latest OS for the best experience
◆
Version 2.26.4 released
Continuing Deck Question Updates
Fixed Neptune AI issues.
Backend Cleaning
◆
Version 2.26.3 released
Continuing to update Deck Question Banks and 2026 Example Tests
To see what's new, go into the Study Bank and filter with the Circle Plus button on the far right and you'll see questions updated for 2026. Some questions are old questions t
◆
Version 2.26.2 released
-2026 Deck Sample Tests Added
-Question Bank Updates
-Some New Illustrations for Engineering Added
-Continuing to add 2026 Deck Sample Tests
◆
Version 2.26.1 released
2026 Sample Test additions for Engineering Complete!
2026 Sample Test additions for Deck in progress...
The question banks are currently being refined to eliminate unecessary material.
◆
Version 2.26 released
-Season 2026 is here! New example tests are rolling in!
-UI adjustments have been made to better work with iOS 26's Liquid Glass.
-Neptune now works offline thanks to the power of Apple Intelligence in iOS 26. If you're grandfathered in wit
◆
Version 2.25.19 released
-Restructured Endorsements to align with the USCG Exam Guide. This was pointed out by a user that was trying to study for their Master 1600 Oceans from a 2nd Unlimited License, but only had to take two modules when the app suggested too man
AENot Available
AFNot Available
AGNot Available
AINot Available
AONot Available
ARNot Available
ATNot Available
AUNot Available
AZNot Available
BANot Available
BBNot Available
BENot Available
BFNot Available
BJNot Available
BMNot Available
BNNot Available
BONot Available
BRNot Available
BSNot Available
BTNot Available
BWNot Available
BZNot Available
CANot Available
CDNot Available
CGNot Available
CHNot Available
CINot Available
CLNot Available
CMNot Available
CNNot Available
CONot Available
CRNot Available
CVNot Available
DENot Available
DKNot Available
DMNot Available
DONot Available
DZNot Available
ECNot Available
EGNot Available
ESNot Available
FINot Available
FJNot Available
FMNot Available
FRNot Available
GANot Available
GBNot Available
GDNot Available
GENot Available
GHNot Available
GMNot Available
GTNot Available
GWNot Available
GYNot Available
HKNot Available
HNNot Available
HUNot Available
IDNot Available
IENot Available
ILNot Available
INNot Available
IQNot Available
ITNot Available
JMNot Available
JONot Available
JPNot Available
KENot Available
KGNot Available
KHNot Available
KNNot Available
KRNot Available
KWNot Available
KYNot Available
LANot Available
LBNot Available
LCNot Available
LKNot Available
LRNot Available
LUNot Available
LVNot Available
LYNot Available
MANot Available
MENot Available
MGNot Available
MLNot Available
MMNot Available
MNNot Available
MRNot Available
MSNot Available
MUNot Available
MVNot Available
MWNot Available
MXNot Available
MYNot Available
MZNot Available
NANot Available
NENot Available
NGNot Available
NINot Available
NLNot Available
NONot Available
NPNot Available
NRNot Available
NZNot Available
OMNot Available
PANot Available
PENot Available
PGNot Available
PHNot Available
PKNot Available
PTNot Available
PWNot Available
PYNot Available
RONot Available
RWNot Available
SANot Available
SBNot Available
SCNot Available
SENot Available
SGNot Available
SLNot Available
SNNot Available
SRNot Available
STNot Available
SVNot Available
SZNot Available
TCNot Available
TDNot Available
THNot Available
TMNot Available
TNNot Available
TONot Available
TRNot Available
TTNot Available
TWNot Available
TZNot Available
UGNot Available
UYNot Available
UZNot Available
VCNot Available
VENot Available
VGNot Available
VNNot Available
VUNot Available
XKNot Available
YENot Available
ZANot Available