i-Boating: USA Marine Charts app for iPhone and iPad

This App offers access to NOAA marine vector charts, freshwater lake maps, USACE inland river maps (HD/1ft/3ft bathymetry included where available). First marine GPS app to have route assistance with Voice Prompts for marine navigation. You can create new boating routes or import existing GPX/KML routes. It supports Nautical Charts course up orientation. Includes Tide & Currents prediction.

►FEATURES
√ Beautiful and detailed Hardware/GPU accelerated vector charts (text stays upright on rotation)
√ Long press to query the details of Marine object (Buoy, Lights, Obstruction etc).
√ Customizable depth(Ft/Fathom/Meter) and distance units (km/mi/NM)
√ Customizable Shallow Depth.
√ Record tracks, Autofollow with real-time track overlay & predicted path vector.
√ Voice Prompts for marine navigation (requires GPS )
√ 1ft / 3ft depth contour maps for anglers for selected lake maps.
√ Supports GPX/KML for boating route editing/import.
√ Tide & Currents prediction.
√ Seamless chart quilting of marine charts
√ Enter or import Waypoints.

► MAPS
The maps include coverage of all NOAA marine vector charts (ENC), USACE inland river maps, and freshwater lake maps for more than 7K lakes. The charts include HD/1ft/3ft bathymetry where available. The app also includes NOAA raster charts for some areas where NOAA ENC coverage is not available. It includes unlimited updates for 1 year.

►ROUTE MANAGEMENT / TRIP PLANNING
√ Create New Route/Edit Existing Routes
√ Move Points
√ Add points to an existing route leg
√ Delete / Rename points
√ Import GPX, KML & KMZ files
√ Plot/Edit Routes
√ Enter Waypoints
√ Share/Export Routes, Tracks & Markers
√ Reverse Routes

►GPS FEATURES
√ Auto Follow
* Real Time Track Overlay
* Predicted Path Vector
* Course Up (Text stays upright)
* Speed & Heading
√ Route Assistance With Voice Prompts
* Prompts when approaching a boating route marker
* Continous distance and ETA updates
* Alerts when sailing/boating off route
* Alerts when boating in wrong direction
√ Record Tracks

►TIDE & CURRENTS
* For US, Canada, UK, Germany & New Zealand
* High/Low Tides
* Tidal Current Prediction
* Active Current Stations

► SHARING
* Share tracks/routes/markers on Facebook & Twitter
* Export tracks/routes/markers as compressed GPX files.

Sample Nautical Charts (please visit http://gpsnauticalcharts.com/main/folio-catalog-nautical-charts-app for complete list)
SUGARLOAF KEY-KEY WEST
PORT RICHEY TAMPA BAY - CLEARWATER HBR
EAST BAY-WEST BAY FLORIDA
ST JOSEPH, ST ANDREW BAYS
INTRACOASTAL WATERWAY MATECUMBE-GRASSY KEY
CHESAPEAKE BAY CAPE CHARLES-NORFOLK HARBOR
ANCLOTE KEYS-CRYSTAL RIVER
ST JOSEPH SOUND
MIAMI HARBOR
Minnesota lakes - Kabetogama, Minnetonka, Waconia,Leech,Mille Lacs
Lake Keowee,Jocassee,Hartwell,Greenwood,Lake Murray
Mark Twain,Ozarks,Table Rock
Lake St. Clair
Lake Kentucky
KEY WEST-THE MISSISSIPPI RIVER
SAN PEDRO CHANNEL
LAKE MICHIGAN STONY LAKE-POINT BETSIE
APALACHICOLA BAY-CAPE SAN BLAS
EAST CAPE-MORMON KEY
CAPE HENLOPEN-INDIAN RIVER INLET
CHESAPEAKE BAY CAPE HENRY-THIMBLE SHOAL LIGHT
DULUTH-SUPERIOR HARBOR
MONHEGAN ISLAND-CAPE ELIZABETH
LAKE ONTARIO - CLAYTON-FALSE DUCKS ISL
Lake Winnipesaukee
SAN FRANCISCO ENTRANCE
MIAMI-MARATHON, FLORIDA BAY
CAPE MAY-FENWICK ISLAND
MISSISSIPPI RIVER-GALVESTON
CAPE CANAVERAL-KEY WEST
DELAWARE RIVER WILMINGTON-PHILADELPHIA
FLORIDA KEYS SOMBRERO KEY-SAND KEY
SAN PABLO BAY
RAINY LAKE BIG ISLAND MINN-OAKPOINT ISL ONT
INTRACOASTAL WATERWAY - BISCAYNE BAY
EVERGLADES NTL PARK - SHARK RVR-LOSTMANS RVR
MIAMI-MARATHON & FLORIDA BAY
BLACKBURN BAY
LAKE HURON
LAKE TAHOE
STRAITS OF MACKINAC
NORFOLK HARBOR & ELIZABETH RIVER
SAN DIEGO-SANTA ROSA ISLAND
DELAWARE BAY
CHOPTANK RIVER CAMBRIDGE-GREENSBORO
FORT LAUDERDALE PORT EVERGLADES
ST SIMONS SOUND-TOLOMATO RIVER
CHESAPEAKE DELAWARE CANAL

PLEASE NOTE: Continued use of GPS running in the background can dramatically decrease battery life.

Usually i-Boating: USA Marine Charts iOS app used & searched for