Maranox Mobile

Irish seabed charts on your phone.

Download INFOMAR depth, ground type and 608 Irish wrecks once over Wi-Fi, then use Maranox at sea with no mobile signal.

Maranox Mobile is live on Google Play. Email us if you need iPhone access before you head to sea.

Get Maranox on Android Ask about iPhone See phone options

See the seabed. Know what's under your hull.

INFOMAR is the most detailed seabed survey of Ireland ever made — twenty years of sonar data from the Geological Survey and Marine Institute. Depth. Ground type. Contour lines down to the metre. It's the best marine data available for these waters, and Maranox puts the whole thing in your pocket.

Coastal bathymetry with depth contours

See what's beneath you

Colour-coded depth and contour lines around the full Irish coast. The kind of detail a yacht skipper uses to avoid a bar and an angler uses to find a drop-off — same data, both jobs.

Sediment classification — mud, sand, gravel, rock

Know your ground

Not just how deep — what the bottom is made of. Mud, sand, gravel, rock, or mixed. Matters whether you're shooting gear, anchoring for the night, planning a dive, or picking a wreck. And it's already on the chart for the whole Irish coast — no sounder, no surveying, not just where you've already been.

Sediment and depth blended together

Depth and ground type together

Slide between sediment colours and depth contours. See where sand meets rock, where the ground drops off, where the good tows are. All in one view.

Satellite view with bathymetry overlay

Works offline at sea

Download the charts once on Wi-Fi. At sea, everything loads from your phone — no internet, no buffering, no signal needed. Mount a tablet in the wheelhouse and you've got a chart plotter.

Shipwrecks & Diving

608 wrecks. Every one on the map.

Geological Survey Ireland catalogued every known wreck in Irish waters. Maranox puts them all on the chart — with the seabed data a dive skipper actually needs to plan the dive.

608 Wrecks mapped
GPS Every position pinned
Offline Bundled in the app

See the wreck on the seabed

Wreck position over INFOMAR bathymetry — see the depth, the contours around it, and the terrain the wreck sits on.

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Know your ground before you splash

Rock, sand, mud or mixed — the sediment layer shows what's around the wreck so you know what visibility and conditions to expect.

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Save your own dive sites

Drop marks on your favourite spots — reefs, walls, scenic dives, drift routes. Saved on your phone, always there.

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No signal? No problem.

All 608 wrecks are bundled in the app. Seabed charts download once. Works 50 miles offshore.

Maranox Mobile

Get Maranox on your phone.

Android is live on Google Play. For iPhone, email us and we will point you to the right access path.

Maranox mobile bathymetry chart

Android

Maranox is live on Google Play for Android phones. Open the official listing and install it from the Play Store.

Get it on Google Play

Official Google Play listing.

Maranox mobile sediment chart

iPhone

iPhone access is being lined up for the Apple release. Email us and we will let you know the right next step.

Ask about iPhone

Android opens the official Google Play listing. iPhone enquiries go to Maranox. See our privacy policy.

Maranox phone app is EUR29.99 per year or EUR6.99 per month with a 14-day trial where offered. Final price and trial terms are confirmed in the app store before purchase.