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SafeAnchor · AI anchor watch

Sleep. Jules keeps watch.

Predictive drift detection tells real drag from a normal swing — so the alarm fires for danger, not a wind shift.

Download on the App Store
Try Pro free for 1 month — cancel anytime.
Trusted by 10,000+ active captains
16
regions offline
8,000+
NOAA tide stations
<2s
to route 50 nm
SafeAnchor anchor watch — Big Coppitt Key, Florida
Anchored112 m / 143 m
Wind3 kn · gust 3 kn
Securedrift 14 m
⛵Depth-aware routingPlans around your draft⚓Anchor watchOn guard while you sleep◍Jules AI co-captainAsk anything at sea🗺Nautica chartsDay & night, offline🌊Weather & tides8,000+ stations live
Routing & Navigation

Plan around your keel. Then follow the line.

The Hybrid A*-APF engine routes around your draft and safety margin — then Voyage mode guides you down the line with depth, wind and waves for every leg.

Depth profile through the route — 13.3 NM, min 15 m, anchored check
Depth through the route
4 risk presetsVessel profilesGPX import & exportOffline routing
SafeAnchor anchor watch over Miami Beach — anchored at 96 m of 121 m, mud seabed with good holding, drift forecast scrubber open
Anchored96 m / 121 m
SeabedMud · Good
Wind2 kn · gust 3 kn
SafeAnchor · AI anchor watch

Drop the hook. Jules takes the deck.

Predictive drift detection separates normal swinging from real drag, so the alarm fires for danger — not for a wind shift. Watch your swing circle, live wind and waves, and depth from the cockpit or the restaurant ashore.

◎
Predictive drift detection
Real drag vs. normal swing on a 143 m radius — Watching since 20:04.
⚑
Heads-up before the wind shifts
Jules pings you ahead of gusts arriving over the anchorage.
⟲
Remote monitoring from ashore
Anchor Watch · Radar · Remote — keep eyes on the boat from your phone.
⛨
OS-level geofence safety net
The alarm still fires even if iOS closes the app overnight.
⌖ Drift forecast

Replay your swing track and project the boat's drift hours ahead under live wind and current — straight on the anchor chart.

Free · 1hPro · 12h🔒 Max · 3dforecast horizon
Big Coppitt Key, Floridaz16 zoomGPS OK ±5 mBeacon
Jules AI co-captain — 12-hour marine weather briefing
Powered byGemini
Jules · your AI co-captain

Ask anything, Captain.

Jules reads your live vessel state and calls 13 real data tools — weather, tides, soundings, anchorage scoring, routing, nearby vessels — then answers in your language.

Storm warning! Curling up tight, hold on Captain 🐙Pro · 13k / 250k
What's the weather for the next 12 hours?
◍ Jules
Here's the weather forecast for the next 12 hours, Captain 🌊
  • Conditions · Clear sky
  • Temperature · 28.4°C (feels like 35.5°C)
  • Wind · 5.6 kn from 166° True
  • Current · 0.4 kn from 326° True
  • Tide · −0.2 m · Wave · 0.3 m
✦ Crew suggestions
Is my anchor holding well here?Plan a route to my next stopWhat's the weather for the next 12 hours?
SeaTracker · charts & bathymetry

S-52 charts that adapt to the light, and the depth.

Our own Nautica Day and Nautica Night S-52 IHO charts, six day/night depth palettes, and EMODnet + GEBCO bathymetry — all of it offline once a region is downloaded.

Nautica Night S-52 IHO chart over the Bahamian EEZ
Nautica Night · S-52 IHO bundled chartOur chart
Reverse NOAA day depth theme
Reverse NOAAday theme
Hybrid satellite with EMODnet bathymetry
Hybrid satellite + EMODnetbathymetry
Deep → Shallow
Reverse NOAA
NOAA blues mirrored — pale sky in the deep, near-black navy in the shallows. Land kept warm tan.
Deep → Shallow
Reverse S-52 IHO
S-52 ECDIS bands inverted — DEPDW reads near-white, DEPVS reads near-black navy. Sharp contour steps preserved.
Deep → Shallow
🌙 Night Watch
Dark amber palette designed to preserve night vision during night passages.
Marine Weather — Big Coppitt Key 24h forecast
Liveupdated 11 min ago
Meteo · marine weather

The whole sky, scored for your anchorage.

NOAA and Open-Meteo, blended and live. Marine weather, a 7-day meteogram, and tide referenced to MLLW for Big Coppitt Key, Florida — Saddlebunch Keys, Similar Sound · 24.584°, −81.617°.

Air
28.4°
Feels
35.5°
Sea
29.5°
Humidity
77%
≈ NOAA☁ Open-Meteo◉ Live✛ MLLW
Mon 8
20:00
21:00
22:00
23:00
00:00
01:00
Air °C
28°
28°
29°
28°
28°
29°
Wind kn
3
3
2
3
3
3
Gust kn
3
3
3
3
3
3
Wave m
0.3
0.3
0.3
0.3
0.3
0.3
Feels °C
36°
36°
35°
35°
34°
33°
16
Regions, offline
US coasts, the Med basins, Caribbean, Baltic and more — charts work without signal.
8,000+
NOAA tide stations
Backing Jules's briefings and the anchor-watch comfort score.
13
Live tools Jules calls
Weather, tides, soundings, routing, nearby vessels — reading your live state.
<2s
To route 50 nm
Hybrid A*-APF on a memory-mapped cost grid. Longer passages stay under ten.
Platforms

iPhone today. Android on the horizon.

AnchorQueen ships on iOS — and AnchorQueen Poseidon, the Android edition, is in sea trials for Google Play.

Available now

AnchorQueen for iOS

The full experience — anchor watch, Jules, offline S-52 charts, weather, and fleet — on iPhone and iPad.

Download on the App StoreTrusted by 10,000+ active captains
Beta crew wanted

Test AnchorQueen Poseidon

The Android edition is in sea trials. Join the beta crew and shape it before launch.

  • Early access on Google Play, free during the beta
  • A direct line to the crew — your reports steer the build
  • Founding-tester thanks when we launch

One or two emails a season. No spam, unsubscribe anytime. Privacy Policy

Use the email tied to your Google account — Google Play test invites are sent to it.

Your co-captain is ready when you are.

Plan depth-safe passages, track every voyage, and sleep while Jules keeps watch — from one iOS app.

Download on the App StoreBack to top

Try Pro free for 1 month — cancel anytime.

Trusted by 10,000+ active captains