Free on iPhone, iPad & Android · No account needed
Quiz-based practice for COLREGS, navigation, tides, sail trim and VHF radio. 2,800+ questions, every one explained, and smart review that brings back what you missed.
2,800+ questions · 5 courses · Works fully offline · Free tier included
Practice
Buoys, lights and shapes, chart symbols and tidal problems, drawn so you learn to recognise them at a glance. Sessions run from 5 to 50 questions: one on the train, or a full mock the night before.
Review
Spaced repetition schedules each missed question for review at the interval that makes it stick. A daily goal and a streak keep sessions short and regular, and the Captain's Log tells you what to do next.
Master
Every module is scored from your best attempts: green means ready, amber needs review, red is your focus area. No guessing whether you've done enough.
What you'll learn
58 modules follow the subject areas covered by RYA, ASA and international syllabi.
SailQuiz is an independent study aid. It is not affiliated with, endorsed by, accredited by, or otherwise connected to the ASA, US Sailing, the RYA, the USCG, or any other certifying body, and it is not a substitute for their official training or examinations.
Try one
Get it right and the explanation still teaches you something. There are 2,800+ more like it, each explained like a good instructor would.
Day Skipper Theory · Collision Regulations
When two power-driven vessels meet head-on, what should each vessel do?
Why?
Rule 14: when two power-driven vessels are meeting head-on (or nearly so), each shall alter course to starboard so that they pass on the port side of each other. Think of it like driving on the right — both move to their own right.
Sailing guides
Getting started
Where to begin if you have never sailed: what you can learn ashore, what needs a boat, dinghy versus keelboat, schools, clubs and crewing, and a realistic path from first lesson to skippering.
10 min read
Getting started
The vocabulary, directions, points of sail, two turns, basic safety and three knots that make a first sailing lesson easy — and the list of things you can safely leave for later.
8 min read
Getting started
How the American Sailing (ASA), US Sailing and RYA training schemes are structured, how they assess you, where each is used, what the ICC and IPC are, and why “do I need a licence to charter?” has no single answer.
12 min read
Yes — SailQuiz is free to download on the App Store and Google Play. The free plan includes one full quiz and three Daily Challenge rounds per day, plus smart review, streaks, and progress tracking. An optional Premium subscription unlocks unlimited quizzes and challenges across every course.
No. SailQuiz has no accounts, no login, and no sign-up. Open the app and start studying — your progress stays on your device.
Yes. Every course, question, explanation, and illustration is bundled with the app, so you can study at anchor, mid-passage, or on a plane with no signal at all. A connection is only needed for purchases and restoring a subscription.
SailQuiz covers the theory that basic keelboat courses like ASA 101 and US Sailing programs teach — points of sail, sail trim, right-of-way, docking, knots, weather, and buoyage — plus Day Skipper-level chartwork, tides and COLREGS, and an SRC marine radio course. SailQuiz is an independent study aid and is not affiliated with or endorsed by the ASA, US Sailing, the RYA, or any certifying body.
Yes. The Sailing Foundations course starts with boat parts and essential vocabulary, and every question includes a plain-language explanation. A short onboarding builds a study plan around your experience level and goals.
COLREGS and right-of-way, navigation lights and shapes, buoyage (both IALA regions), charts and position fixing, tides, points of sail, sail trim, knots, docking, anchoring, weather, safety, and VHF/DSC marine radio — 2,800+ questions across 5 courses and 58 modules.
Yes. SailQuiz supports iPhone and iPad with a layout designed for both, runs on Android phones and tablets, and also installs on Apple silicon Macs.
No — nothing replaces time on the water with an instructor. SailQuiz makes the theory stick, so you arrive at lessons, exams, and charters prepared and spend less time memorizing ashore.
2,800+ questions, every one explained. Free to download, no account, works completely offline. Optional Premium unlocks unlimited practice.
