GPS Marine Charts App offers access to RNC charts covering United Kingdom / Ireland waters (derived from UKHO data) with POI layers created from ENC charts. Only marine GPS app to have route assistance with Text Alerts for marine navigation. It has route manager to create new boating routes or import existing GPX/KML routes. It supports Nautical Charts course up orientation.
Please visit http://www.gpsnauticalcharts.com/main/uk-nautical-charts-by-folio.html for complete list. If you don’t find the chart for United Kingdom / Ireland, please contact us at support at gpsnauticalcharts.com.

• Text Prompts for marine navigation (requires GPS )
  -prompts when approaching a boating route marker
  -Continous distance and ETA updates
  -Alerts when sailing/boating off route
  -Alerts when boating in wrong direction
  *Route Editing/Creation
  -Create routes from scratch
  -Edit existing GPX/KML routes.
  -Add custom description to any route point.
  -Drop markers along route.
• Offline charts derived from UKHO data.
  -Visually draw area to download
  -Textual search
  -Catalog (By state, region and coast guard district)
  -Charts reprojected for WGS84 datum
  *Seamless chart quilting of marine charts
  *Distance Bearing tool
  *Create custom way points

• Using GPS
  -Select point on map
  -Manually enter latitude & longitude coordinates
  *POI layer for marine charts
• Overlay POIs
• POI list derived from the equivalent ENC and contains all categories including Buoy, Light, Harbour facility, Obstr.
  *Search POIs/Way points
  *Pan/Zoom/My Location

• Record Marine GPS tracks
• View tracks overlay
• Live track animation
• Track analytics/stats
• Export GPX tracks.
  -Export to SDCard
  -Share GPX trakcs with friends/View on Google earth.
• Auto Follow Mode (Course up)
  -Continuously updates boat’s location on chart

• Adjustable update frequency
  Sample Nautical Charts (please visit http://www.gpsnauticalcharts.com/main/uk-nautical-charts-by-folio.html for complete list)
  The Solent and Southampton Water
  A Beaulieu River
  Western Approaches to The Solent
  Approaches to Portsmouth
  Bill of Portland to the Needles
  Bill of Portland to Anvil Point
  Eastern Approaches to the Solent
  G Lymington River
  A Continuation of River Medina
  Southampton Water and Approaches
  Outer Approaches to the Solent
  Port of Southampton
  Selsey Bill to Beachy Head
  Approaches to Portland and Weymouth
  Cowes Harbour and River Medina
  Berry Head to Bill of Portland
  A Entrance to River Hamble
  Thames Estuary
  B River Medina Folly Point to Newport
  Portsmouth Harbour
  D Ashlett Creek
  H Yarmouth Harbour
  F Approaches to Keyhaven
  C Alum Bay
  E Newtown River
  Approaches to Felixstowe, Harwich and Ipswich with the Rivers Stour, Orwell and Deben
  Falmouth to Plymouth
  G Hillhead Harbour
  Dartmouth Harbour
  Poole Harbour and Approaches
  Poole Bay
  Falmouth to Truro
  B Upper Reaches of Beaulieu River
  Continuation of Fareham Lake
  I River Yar
  H Wootton Creek
  Langstone and Chichester Harbours
  A Lyme Regis Harbour
  A Brighton Marina
  Land’s End to Falmouth
  Portsmouth Harbour Southern Part
  E Bembridge Harbour
  A Continuation of Holes Bay
  Eddystone Rocks to Berry Head
  A Approaches to Padstow
  Thames Estuary Northern Part
  D Freshwater Bay
  A Helford River Continuation to Gweek
  Tor Bay
  Portsmouth Harbour Northern Part
  J Lizard Point
  Continuation to Port Solent
  Start Point to Brixham
  A Continuation to Blackness Point
  D Newquay Bay
  Salcombe to Start Point
  A Charlestown Harbour
  Portland Harbour
  River Thames Sea Reach
  A Penzance Bay
  Caernarfon Bay
  Bristol Channel
  B Mevagissey
  Linney Head to Oxwich Point
  Salcombe Harbour
  Harwich and Felixstowe
  Salcombe
  Approaches to Falmouth
  B Par Harbour