Best Sea Depth alternatives: apps like Sea Depth - Depthly

10+ similar apps compared and reviewed

4.4 avg rating
10 free apps
Updated November 2026

Looking for something like Sea Depth? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to Sea Depth

Sea Depth#1

Sea Depth by Seadepth Charts, LLC

Offshore Bathymetry Charts
4.2(17 ratings)
FreeIn-App Purchases
Sea Depth screenshot 1
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Sea Depth screenshot 5

Provides detailed offshore bathymetric charts with high-resolution shaded relief to reveal underwater structures. Offers data overlays, contour labeling, waypoint management, and drift analysis for enhanced seafloor understanding. Enables offline chart access for reliable use offshore.

4.6๐Ÿ˜Š(888 ratings)
FreeIn-App Purchases
#98in Navigation
TZ iBoat โ€“ Marine Navigation screenshot 1
TZ iBoat โ€“ Marine Navigation screenshot 2
TZ iBoat โ€“ Marine Navigation screenshot 3
TZ iBoat โ€“ Marine Navigation screenshot 4
TZ iBoat โ€“ Marine Navigation screenshot 5
TZ iBoat โ€“ Marine Navigation screenshot 6

Navigate coastal waters with advanced marine charts, GPS, and real-time data. Monitor AIS targets, plan routes, and access weather forecasts for safer boating, sailing, and fishing. Offers offline capabilities and community map sharing.

What We Love

  • ๐Ÿš€ Easy to use
  • ๐Ÿš€ Accurate charts
  • ๐Ÿš€ Useful features (weather, tides, currents, etc.)
  • ๐Ÿš€ Good integration with Furuno radar and AIS
  • ๐Ÿš€ Seamless cloud sync between devices
  • ๐Ÿš€ Excellent customer support

Room to Improve

  • ๐Ÿ› Occasional crashes or freezing
  • ๐Ÿ› Inaccurate or outdated charts in some areas
  • ๐Ÿ› Anchor alarm not loud enough
  • ๐Ÿ› Difficulty importing/managing routes and waypoints
  • ๐Ÿ”‹ Battery drain on mobile devices
Aqua Map Boating#3

Aqua Map Boating by GEC s.r.l.

Marine navigation and fishing
4.7๐Ÿ˜Š(14K ratings)
FreeIn-App Purchases
Aqua Map Boating screenshot 1
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Aqua Map Boating screenshot 6

This marine navigation app provides official, weekly updated nautical charts for offline use. It offers features like route planning, GPS track recording, tide and current predictions, and anchor alarms. Advanced subscriptions unlock marine forecasts, NMEA instrument connectivity, and local data for enhanced safety and navigation.

What We Love

  • ๐Ÿš€ Excellent navigation tool
  • ๐Ÿ‘ Easy to use and intuitive
  • ๐Ÿ—บ๏ธ Detailed and accurate charts
  • ๐Ÿ’ก Helpful features like AIS, weather, and fuel prices
  • ๐Ÿค Responsive and helpful customer support

Room to Improve

  • ๐Ÿ› Occasional issues with map downloads and disappearing charts
  • ๐Ÿ” Lack of intuitive route planning functionality
  • ๐Ÿ” Slow map loading and tracking issues in certain areas
  • ๐Ÿ’ฐ Subscription model with additional costs for map downloads

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4
C-MAP: Boating
C-MAP: Boating
C-MAP: Boating
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Access up-to-date nautical charts for global exploration and planning. Save points of interest and routes, record tracks, and view marine weather. Upgrade for offline maps, GPS, and advanced features like shaded relief and AIS.

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i-Boating: Marine Charts & Gps
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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.

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Argo Navigation: Boat GPS, Map
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This free navigation app provides marine charts, weather forecasts, and tide predictions for boaters. It offers route planning, hazard reporting, and social features to connect with other users. Premium features include advanced routing and offline chart downloads.

NOAA and Army Corps charts500,000+ marinas and fuel docksBoater-reported hazards
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Lowrance: app for anglers
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Lowrance: app for anglers
Great fishing charts
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This app provides detailed fishing charts and navigation tools for anglers. Manage waypoints, discover new fishing spots, and plan trips with offline maps and autorouting. Sync data with your Lowrance devices for a seamless on-water experience.

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Navionicsยฎ Boating
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Nautical and fishing charts
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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
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onWater: Fishing Spots Map
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This app provides anglers with detailed fishing maps, real-time conditions, and planning tools. It helps users find legal fishing spots, understand weather patterns, and log their catches. Features range from depth charts and wind animations to species filters and private land parcel information.

HD Depth ChartsWind AnimationsJournal Insights
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Savvy Navvy: Boat Navigation
Savvy Navvy: Boat Navigation
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GPS, Nautical Charts, Boating
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This marine navigation app simplifies charts, weather, tides, and GPS tracking for boaters. It offers smart routing, real-time positioning, and safety features like AIS data to ensure confident and safe journeys on the water.

Clutter-free marine chartsSmart route planning with ETAsReal-time GPS tracking
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