More powerful than your top 5 cruising apps — combined.
It’s expensive, disjointed, and annoying to have to rely on 5 or more apps that don’t talk to each other to enjoy your cruising lifestyle. Master’s Mate was built by a cruising and tech extremist — and he didn’t hold back a single feature.
“There is a lot of dead air and lost features when you need to switch between apps. We have unlocked the power of unifying everything in one place!” — Josh Youssef, Founder
The result is the most ridiculously feature-packed, yet easy-to-use cruising lifestyle platform ever built. And as a founding member, you will enjoy a full year of every Master’s Mate feature for FREE, with no strings attached!
Anchored under stars only reachable by boat. Friends made in places you couldn’t pronounce. Sundowners that turn into squalls that turn into stories. The cruising life is too rich to live by scattered phone photos and a lost voyage log. Your voyage deserves a real log.
Your log writes itself.
Friends back home stop asking “where are you?” — they just click follow and see.
Your kids in college track every passage.
Your new buddy boat messages you when they see you nearby
One link. Every harbor. Everyone you love, along for the journey.
Watching is free.
Anse Mitan, Martinique. A beautiful anchorage at sunset — flat calm, glass on the bay, not a ripple in the cove. We turned in early, hatches open, the boat barely moving on her chain.
At 3:14 AM the Master’s Mate anchor sentinel went off — the kind of alarm that wakes everyone out of a dead sleep. I was out of the bunk before I was awake. We were dragging.
A 33-knot popup squall had rolled in from the east. Just enough to convince our 100,000-lb boat that now is a good time to leave.
I’ve been at anchor thousands of nights. No other anchor alarm has ever been as reliable and effective as Master’s Mate!
Sleep easy tonight.
Real-time helm. Anchor watch that actually wakes you. Full Victron read and control. NMEA 2000, 0183, Modbus, MQTT, CAN bus — every device on your bus, on every screen you own. Phone in the cockpit. Tablet at the nav station. Laptop ashore. Chartplotter at the helm. One login. Same data. Always live.
The first time you actually trust your anchor watch, you sleep deeper than you have in years. Drift detection, drag alerts that wake the boat — not just your phone — and a safe-radius circle that resets every time you swing.
Stack three weather models side-by-side. Draw a route on your phone and it appears on every screen aboard. See your weather window, your tide window, and your daylight window before you weigh anchor.
Every passage, every anchorage, every harbor — logged automatically with the line you sailed, the time you spent, the notes you wrote at the helm. A year from now you’ll have a real story, not scattered phone screenshots.
See the cruisers in the anchorage you just dropped into. Message a captain you spotted on AIS three days ago. Stay connected to the friends who sailed over the horizon last season — without trading numbers or chasing them across Facebook groups.
200,000+ anchorages, marinas, and bars — curated by cruisers who actually dropped the hook. The bay with the wifi. The marina with the cheap fuel dock. The cove the locals say is safe to swim.
The cargo ship coming up your stern at 18 knots. The squid boat dark on radar but lit on AIS. The buddy boat just over the horizon. Every target on your chart with closest-approach math — so you know which one to call, which one to dodge, and which one to wave at. AIS Memory™ remembers every boat you ever encountered… forever.
Three simple steps from sign-up to your boat live on the map. No salesperson, no setup call.
No credit card. No catch. The full platform — every chart, every alarm, every screen — yours for 12 months. We’re not VC-funded; we’re a small family running a real boat, so “free” actually means free. Be one of the first 1,000 founding captains. Come join us.
Free for 12 months for the first 1,000 founding captains. Two paths in: bring your own gateway, or get our plug-and-play Bosun Box.
Already have a gateway? Free software for 12 months.
Plug-and-play hardware — software free for a year.
Come along anyway. Watch the world cruise, in real time.
Armchair sailors & buddy followers. No boat needed.
We’re a real family of four on a real boat. Every feature in Master’s Mate started as something we needed — and we hope you will find Master’s Mate as useful as we have!
The first 1,000 captains get a free year because we need your feedback and value you as a meaningful member of our community! We look forward to meeting you all online, or on the water!
— Josh, Julie, Joshua (12), & Griffin (10)
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