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YOUR WHOLE WATER DAY, CONNECTED

Know the water.
Make the day.

Your boat. Your forecast. Your way out and back. Find your window, check the route and keep the whole day together with Gillby.

Free. No credit card.

Boat daysFishing tripsSurf sessionsBeach afternoons
Turquoise water and islands in a Florida Keys setting
BUILT FOR FLORIDA’S WATER

GILLBY · YOUR WATER MAP

Actual Gillby water map with Boca Inlet forecast, wind, waves and tides
More than a forecast.Conditions. Routes. Places. Your boat.
Actual app capture, Oct 18, 2026. Background scene AI-generated.

LOCAL QUESTIONS.
REAL SOURCES.

NOAA / NWSNDBC BUOYSCO-OPS TIDESGOES LIGHTNINGLOCAL CAMS

ONE APP. THE WHOLE WATER PICTURE.

Less piecing it together.
More getting out there.

From the first forecast check to the trip home, see what Gillby brings to your day.
01 / EXPLORE GILLBY

Find the hours worth heading out for.

Read wind, waves, tides and boat-specific ride comfort together. Compare the hours ahead, with advisories and source times right beside the forecast.

Explore this view
Actual Gillby hourly boating forecast and coastal map
Actual app capture · October 18, 2026 · historical conditions

YOUR BOAT CHANGES THE PLAN

A course worth
checking.

Put your boat’s draft, departure time and clearance margin into the route check. See the shallowest point, estimated time underway and reported restrictions before you commit to the day.

Plan your route Warnings stay attached to every route. Verify bridge clearances locally.

WATCH THE SKY. PICK YOUR WINDOW.

The weather moves.
See what’s coming.

Radar over the coast. Clouds from space. Rain and thunder through the hours ahead.
FLORIDA & THE KEYS
Florida, seen from space.NASA VIIRS true color · 2026-10-17 · dated daily imagery
Follow the radarCompare timestamped precipitation scans.
Check rain & thunderPlan around hourly forecast probabilities.
Include the windLook at gusts, direction and changing conditions.

Satellite preview: NASA Suomi NPP / VIIRS, via GIBS. Radar shows observed rain, not where storms will go.

THE DETAILS THAT MAKE IT YOURS

Your boat. Your people.
Your kind of water.

More than checking the weather. Make Gillby part of how you plan, share and enjoy the day.
Float planWORKFLOW PREVIEW

A day on the water.
Someone in the loop.

Your vessel & people aboardYour route & stopsDeparture & expected return
Share with trusted contactsThey acknowledge the planCheck in when you’re back

FLOAT PLANS & RETURN CHECK-INS

Leave more than
“we’ll be back later.”

Put your boat, people aboard, itinerary, equipment and expected return in one private float plan. Share with trusted contacts, see their acknowledgment and record your safe return.

Make your float plan Check-ins show in Gillby. Not an emergency service.
YOUR BOAT → YOUR ICON
Example custom boat icon generated from boat reference photosActual generated example

PERSONAL BOAT ICON GENERATOR

That’s your boat.
Make it look like it.

Upload 1–3 photos of your boat. Gillby creates a custom icon that keeps its shape and colors, then saves it to your private account for use across the app.

Create your boat icon Photos are sent to OpenAI to generate the icon. Only the generated icon is saved.

Find your friends on the water.

Send a friend request. Once accepted, choose when to share your water location and see friends on the map. You control when sharing starts and stops.

Opt-in and time-limited.
Bring your people

BEFORE YOU LEAVE. WHILE YOU’RE OUT.

A plan for the day.
Tools for the water.

Check your route, keep an eye on your speed and bring your friends into the day.
ACTUAL APP SCREENView full
Actual Gillby iPhone boating screen with GPS speedometer and map, waiting for a GPS fix
iPhone app · coming soonActual Simulator capture · acquiring GPS

Your speed, at a glance.

Start the GPS speedometer to see your speed over ground and your session’s top speed, right on the water map.

Web tracking works while Gillby is open in the foreground.
ACTUAL APP SCREENView full
Actual Gillby Friends panel with friend requests and time-limited location-sharing controls
Friends & location sharingActual app capture · signed-out state

Your friends. Your water.

Send a friend request using their Gillby email or verified phone number. Once accepted, choose when to share your water location and see friends on the map.

Opt-in and time-limited. You choose when it starts and stops.
ACTUAL APP SCREENView full
Actual Gillby grounding-watch setup with draft, beam, under-keel clearance and warning-sound controls
Grounding watchActual app capture · setup before tracking

Know what’s beneath you.

Explore depth shading and contours, check a route’s shallowest point and review tide-adjusted clearance for your boat. Opt into grounding watch for checks around your GPS position.

Depends on chart coverage, tides and GPS.
ACTUAL APP SCREENView full
Actual redesigned Gillby float-plan editor showing route, departure and expected return fields
Float plans & return timesActual app capture · unsaved route form

Keep the plan together.

Save trips with departure and return times, then recheck conditions and route constraints before leaving.

FLOAT PLANS & RETURN CHECK-INS →

EXPLORE THE FLORIDA KEYS

Real islands.
Real water. A closer look.

Explore the actual Keys coastline and modeled depth shading. Zoom into Key West, Marathon or Islamorada, then work out the charted depth your boat would need below.

Draft 2.5 + clearance 1.0 − tide 0.5 = 3.0 ft minimum charted depth

Check your boat and route
THE FLORIDA KEYS
Full map
DEPTH KEY FEETBelow → Above requirement
  • Below 3.0 ftToo shallow for chosen margin
  • 3.0–5.0 ftJust above chosen margin
  • 5.0–15.0 ftMore modeled clearance
  • 15.0+ ftDeep modeled water
Gray water: depth unavailable

Modeled depth, not a navigation chart. Verify with your chart, local tide and sounder.

Loading real map and depth tiles…

Coastline: OpenFreeMap / OpenStreetMap. Depth: NOAA NCEI, with AWS Terrain Tiles fallback. Modeled, not a navigation chart.
A center-console boat anchored beside a low coastal island in clear waterGulf coast setting · AI-generated scene

THERE’S MORE TO THE DAY THAN WEATHER

Find your spot.
And the stops along the way.

Dive spots. Boat ramps. Fuel docks. Somewhere to drop anchor. Explore the places and local details that turn an idea into a day out.

  • Reefs, dive spots, marinas and coastal places
  • Fuel stops, ramps and available activity reports
  • Dated shark and jellyfish observations, with sources
Find your water

Wildlife records are dated observations, not live tracking.

YOUR QUESTIONS. YOUR WAY OF ASKING.

Your water knowledge.
In your AI workflow.

Ask Gillby in the app, or explore a connection to the assistant you use. Coastal tools bring forecasts, tides, places and source details into the conversation.

View the connection guide

Directory listings are on the way. Custom MCP setup works today. Logos belong to their owners.

COMING TO IPHONE AND APPLE WATCH

In your pocket.
On your wrist.

Start with Gillby on the web
  • iPhone

    Conditions, the water map and Ask Gillby, plus GPS speed and route progress on the Lock Screen.

  • Apple Watch

    Wind, seas, the outlook and marine alerts at a glance.

MEET THE CREATOR

Practical AI.
For your life on the water.

Gabriel Keding is Gillby’s founder and creator, and a co-founder of OneWave AI, a South Florida AI consultancy. His background spans SaaS sales leadership, cybersecurity and AI. At OneWave, he leads strategy and solution design.
Gabriel Keding, founder and creator of Gillby

Gabriel KedingFounder & Creator, Gillby

More about Gabriel at OneWave AI