Best Sea Maps Apps

246+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated October 2026

Looking for free sea maps apps? 20 of our 246+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Sea Maps Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1C-MAP: BoatingC-MAP: BoatingFree4.5★ (2.3K)NoYesOct 2026
2Sea MapsSea MapsFree5.0★ (1)NoYesOct 2026
3Navionics® BoatingNavionics® BoatingFree2.9★ (2.3K)NoYesOct 2026
4Sea Maps & AR: Boat GPSSea Maps & AR: Boat GPSFree—YesYesOct 2026
5Capta: Fishing Spots & GPS MapCapta: Fishing Spots & GPS MapFree—NoYesOct 2026
6Sea Info Map -Tides,FishingSea Info Map -Tides,FishingFree—NoYesAug 2026
7Open Sea OpenSeaMap BrowserOpen Sea OpenSeaMap BrowserFree3.2★ (5)NoNoMay 2026
8i-Boating: Marine Charts & Gpsi-Boating: Marine Charts & GpsFree4.5★ (15K)NoYesOct 2026

Top Picks for Sea Maps

C-MAP: Boating#1

C-MAP: Boating by Navico Norway AS

Charts, Planning & Navigation
Editor's Choice
🗺️ Navigation
4.5😞(2.3K ratings)
FreeIn-App Purchases
#99in Navigation
C-MAP: Boating screenshot 1
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C-MAP: Boating screenshot 5
C-MAP: Boating screenshot 6

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.

What We Love

  • 🚀 Accurate maps and charts
  • 👍 Easy to use and intuitive
  • 📍 Helpful for planning trips and routes
  • 🛳️ Useful for both professionals and beginners
  • ⚙️ Detailed features like shaded relief and weather info

Room to Improve

  • 🐛 Frequent crashes and freezes
  • ⚠️ Unreliable GPS tracking and location updates
  • 🔌 Offline maps and features not working as expected
  • 🤔 Confusing or missing functionality (e.g. route editing)
  • 💸 Expensive subscription, not worth the cost
Sea Maps#2

Sea Maps by APP ASPIRES

Smart sea maps for boating
Strong Contender
🗺️ Navigation
5.0(1 ratings)
FreeIn-App Purchases
Sea Maps screenshot 1
Sea Maps screenshot 2
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Sea Maps screenshot 4
Sea Maps screenshot 5
Sea Maps screenshot 6

This marine navigation app provides boaters with interactive maps, real-time weather overlays, and AIS vessel tracking. It offers advanced features like bathymetry, anchor alarms, and track recording for safe and informed ocean exploration.

Navionics® Boating#3

Navionics® Boating by Garmin

Nautical and fishing charts
Worth Considering
🗺️ Navigation
2.9😞(2.3K ratings)
FreeIn-App Purchases
#7in Navigation
Navionics® Boating screenshot 1
Navionics® Boating screenshot 2
Navionics® Boating screenshot 3
Navionics® Boating screenshot 4
Navionics® Boating screenshot 5
Navionics® Boating screenshot 6

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.

What We Love

  • 🚀 Great navigation app
  • 🗺️ Detailed charts and maps
  • ⚓ Useful for boating and sailing
  • 💰 Good value for money

Room to Improve

  • 🐛 Frequent crashes and bugs
  • 🔒 Login issues and unreliable offline access
  • 💰 Expensive subscription model
  • 🗺️ Inaccurate or outdated map data

More Sea Maps apps to explore

FAQ about Sea Maps

What are the best sea maps apps for iPhone?
C-MAP: Boating tops our sea maps apps ranking as of October 2026, with a 4.5-star average from 2.3K App Store ratings, and it's free to download.
Yes — 20 of the top sea maps apps we rank are free to download, including C-MAP: Boating and Sea Maps.
C-MAP: Boating has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 246+ sea maps apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.