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Best Marine Charts Depth Apps

199+ iOS apps curated and reviewed

3.8 avg rating
13 free apps
Updated August 2026

Looking for free marine charts depth apps? 13 of our 199+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Marine Charts Depth Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1i-Boating: Marine Charts & Gpsi-Boating: Marine Charts & GpsFree4.5★ (15K)NoYesAug 2026
2Sea DepthSea DepthFree5.0★ (1)NoYesAug 2026
3Hip ChartsHip ChartsFree3.7★ (6)NoNoAug 2026
4i-Boating: USA Marine Chartsi-Boating: USA Marine Charts$29.994.3★ (186)NoNoAug 2026
5Marine Chart SymbolsMarine Chart Symbols$4.991.7★ (3)NoNoJul 2026
6Marine NavigationMarine Navigation$19.99—NoNoJul 2026
7SeaVectors: Marine NavigationSeaVectors: Marine NavigationFree—NoYesAug 2026
8Marine Navigation - CanadaMarine Navigation - Canada$32.994.5★ (2)NoYesAug 2026

Top Picks for Marine Charts Depth

i-Boating: Marine Charts & Gps#1

i-Boating: Marine Charts & Gps by Bist LLC

Lake Depth Map,Sailing Plotter
Editor's Choice
🗺️ Navigation
4.5😊(15K ratings)
FreeIn-App Purchases
#87in Navigation
i-Boating: Marine Charts & Gps screenshot 1
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i-Boating: Marine Charts & Gps screenshot 5
i-Boating: Marine Charts & Gps screenshot 6

Navigate waterways with detailed marine charts and GPS. Features include route planning, voice-guided navigation, tide and current predictions, and track recording. Offers extensive map coverage for various regions and inland rivers.

What We Love

  • 🚀 Accurate GPS and navigation
  • 🗺️ Detailed nautical charts
  • 📊 Helpful fishing and structure information
  • 🔍 Useful for finding unexplored fishing spots

Room to Improve

  • 🌐 GPS/location issues, inaccurate positioning
  • 💰 Expensive recurring subscription model
  • 🔁 Difficulty restoring purchased content on new devices
Sea Depth#2

Sea Depth by Seadepth Charst

Offshore Bathymetry Charts
Strong Contender
🗺️ Navigation
5.0(1 ratings)
FreeIn-App Purchases
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Visualize detailed underwater terrain with high-resolution bathymetric charts. Gain deeper insights into seafloor structure, contours, and terrain for offshore activities. Includes optional data overlays and waypoint management for enhanced situational awareness.

Hip Charts#3

Hip Charts by Walk About Apps

NOAA ENC Charts
Worth Considering
🗺️ Navigation
3.7(6 ratings)
Free
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Access NOAA nautical charts for free on your mobile devices. View charts online and download single areas for offline use. Additional features like multiple offline downloads and custom boundaries require a purchase.

More Marine Charts Depth apps to explore

4
i-Boating: USA Marine Charts
i-Boating: USA Marine Charts
i-Boating: USA Marine Charts
Nautical + Lake Contour Maps
$29.99

This app provides detailed marine and lake navigation charts, including NOAA vector charts, USACE inland river maps, and contour maps for anglers. It offers advanced GPS features like voice-prompted route assistance, track recording, and tide/current predictions for safe and efficient boating.

NOAA marine vector chartsFreshwater lake contour mapsVoice-prompted route assistance
🗺️ Navigation
(186)
free with in-app purchases
5
Marine Chart Symbols
Marine Chart Symbols
Marine Chart Symbols
by Imray
$4.99

A comprehensive reference for marine chart symbols, abbreviations, and terms. It's designed for learning, teaching, and as a quick reminder for sailors and cartography professionals. Features over 800 entries with search and favorite options.

Over 800 symbols and abbreviationsOrganized content treeSearch functionality
🗺️ Navigation
(3)
paid
6
Marine Navigation
Marine Navigation
Marine Navigation
by Marco Palaferri
$19.99

This app offers a one-time purchase offline GPS chartplotter, giving you lifetime ownership of your maps without subscriptions or data tracking. It provides reliable navigation for sailors and fishermen, with an optional PRO subscription for advanced features.

Offline GPS chartplotterOne-time purchase, own foreverProprietary S57 engine
🗺️ Navigation
(0)
free with in-app purchases
7
SeaVectors: Marine Navigation
SeaVectors: Marine Navigation
SeaVectors: Marine Navigation
NOAA ENC Charts, Winds & Tides
Free

This app provides professional marine navigation with official ENC charts and real-time weather data. It offers advanced instrument displays, alerts for restricted areas and fishing closures, and route planning capabilities for safe and informed voyages.

ECDIS-grade ENC chartsReal-time marine conditionsCustomizable instrument panel
🗺️ Navigation
(0)
free with in-app purchases
8
Marine Navigation - Canada
Marine Navigation - Canada
Marine Navigation - Canada
Fishing Spots + Depth Charts
$32.99

This app provides detailed marine navigation charts for Canada, including depth data and fishing spots. It offers voice-guided route assistance, route creation and import tools, and offline chart downloads for safe boating.

Canadian CHS data chartsVoice prompts for navigationRoute manager (create/import)
🗺️ Navigation
(2)
paid
9
Navionics® Boating
Navionics® Boating
Navionics® Boating
Nautical and fishing charts
Free

Access detailed nautical charts and advanced boating features offline on your mobile device. Plan trips with dock-to-dock guidance, check weather and tides, and connect with a community of boaters. Ideal for cruising, fishing, sailing, and diving.

Offline nautical chartsHD bathymetry mapsDock-to-dock route planning
🗺️ Navigation
(2.3K)
free with in-app purchases
10
Great Depths
Great Depths
Great Depths
by Walk About Apps
Free

This app transforms your iOS device into a digital depth finder. It provides comprehensive US coastal and Great Lakes coverage with live tide data and nautical charts. Navigate safely and efficiently with offline chart storage and distance calculation features.

Digital depth readoutsLive tide dataNOAA RNC nautical charts
🗺️ Navigation
(12)
free with in-app purchases
11
Flytomap All in One HD Charts
Flytomap All in One HD Charts
Flytomap All in One HD Charts
Charts & Maps GPS Navigator
$14.99

Access detailed nautical and outdoor maps worldwide, including marine charts, lake maps, and park maps. Download charts for offline use with GPS navigation, route planning, and weather forecasts. Explore and record your adventures without an internet connection.

Offline chart downloadsWorldwide marine and outdoor mapsGPS navigation and route planning
🗺️ Navigation
(4)
free with in-app purchases
12
Ditch: Boat Navigation
Ditch: Boat Navigation
Ditch: Boat Navigation
Marine GPS, Boat Charts, Maps
Free

Enhance your boating experience with intelligent routing and accurate arrival time predictions. Visualize historical vessel traffic and customize charts for a personalized view of waterways, ensuring safer and more confident journeys on the water.

AI-powered smart routingAccurate ETA predictionsHistorical AIS data visualization
🗺️ Navigation
(22)
free with in-app purchases
13
Aqua Map Boating
Aqua Map Boating
Aqua Map Boating
Marine navigation and fishing
Free

This app provides official, weekly updated nautical charts for marine navigation. It allows for offline map downloads, GPS track recording, and integration with onboard instruments. Enhance your boating safety and experience with advanced features like weather forecasts and AIS collision detection.

Official NOAA nautical chartsOffline map downloadsGPS track recording
🗺️ Navigation
(14K)
free with in-app purchases
14
Pilot Charts
Pilot Charts
Pilot Charts
Prevailing Weather Conditions.
$5.99

Access historical wind and wave data for oceans worldwide, presented in monthly charts. Explore conditions for the Atlantic, Pacific, and Indian Oceans, with additional regions available for free download.

Monthly wind and wave condition chartsOceanic data for Atlantic, Pacific, Indian OceansHistorical data from the last century
☀️ Weather
(3)
paid
15
Marine Navigation Lite
Marine Navigation Lite
Marine Navigation Lite
Offline GPS tracker for boat
Free

This app offers offline GPS charting for marine use, allowing users to own their maps permanently. It provides advanced navigation tools, custom map creation from any image, and respects user privacy by not tracking or selling data.

Lifetime map ownershipOffline GPS chartingCustom map creation from images
🗺️ Navigation
(0)
free with in-app purchases
16
Nautical Charts & Maps
Nautical Charts & Maps
Nautical Charts & Maps
Nautical Charts & Marine Maps
$8.99

Access NOAA Electronic Navigational Charts (ENC) for offline marine navigation. View detailed information like buoys, depths, and port features. Overlay NOAA weather maps including radar, sea temperature, and wind data.

NOAA Electronic Navigational Charts (ENC)Offline chart downloadsDetailed chart information
🗺️ Navigation
(3.8K)
free
17
NV Charts GPS Navigation AIS
NV Charts GPS Navigation AIS
NV Charts GPS Navigation AIS
Marine Navigation and Boating
Free

This app provides digital nautical charts and navigation tools for safe boating. It offers offline chart downloads, real-time AIS tracking, and community-shared points of interest. Plan and share your routes with ease.

Digital nautical chartsOffline chart downloadsReal-time AIS tracking
🗺️ Navigation
(114)
free with in-app purchases
18
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
GPS, Nautical Charts, Boating
Free

This app provides comprehensive marine navigation, integrating charts, weather, tides, and GPS tracking. It simplifies route planning and offers real-time safety data to ensure confident and enjoyable time on the water for various boating activities.

Clutter-free nautical chartsSmart route planning with weather and tide integrationReal-time GPS tracking
🗺️ Navigation
(8K)
free with in-app purchases
19
Charts & Tides
Charts & Tides
Charts & Tides
by Navimatics Corporation
Free

Navigate waterways with detailed charts, tide information, and GPS. Research and plan trips at home, or use it on your boat for real-time navigation. Access a vast offline database of marine information for safe and informed journeys.

Seamless large area chartsTide levels and current speedsActiveCaptain database integration
🗺️ Navigation
(17)
free with in-app purchases
20
PRO CHARTS - Marine Navigation
PRO CHARTS - Marine Navigation
PRO CHARTS - Marine Navigation
by MiraTrex, Inc.
Free

Navigate marine environments with detailed nautical charts and route planning. Track your location, find friends on the water, and share your trip details for safety. Offline chart access ensures reliable navigation even without an internet connection.

High-resolution NOAA nautical chartsOffline chart accessWaypoint and route creation
🗺️ Navigation
(8.5K)
free with in-app purchases

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FAQ about Marine Charts Depth

What are the best marine charts depth apps for iPhone?
i-Boating: Marine Charts & Gps tops our marine charts depth apps ranking as of August 2026, with a 4.5-star average from 15K App Store ratings, and it's free to download.
Yes — 13 of the top marine charts depth apps we rank are free to download, including i-Boating: Marine Charts & Gps and Sea Depth.
i-Boating: Marine Charts & Gps has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 199+ marine charts depth apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app provides detailed marine charts and GPS functionality for navigation on waterways. It allows users to plan routes, receive voice-guided navigation, view tide and current predictions, and record their tracks. The app offers extensive map coverage for various regions and inland rivers.
Key features include hardware/GPU accelerated vector charts, long-press object details, customizable units, track recording with real-time overlay, voice prompts for navigation, GPX/KML route import, tide and current predictions, and seamless chart quilting. It also supports NMEA AIS and GPS instrumentation.