1. Home
  2. Topics
  3. Sea Maps

Best Sea Maps Apps

245+ iOS apps curated and reviewed

3.8 avg rating
20 free apps
Updated August 2026

Looking for free sea maps apps? 20 of our 245+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Sea Maps Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1C-MAP: BoatingC-MAP: BoatingFree4.5★ (2.3K)NoYesSep 2026
2Sea MapsSea MapsFree—NoYesAug 2026
3Capta: Fishing Spots & GPS MapCapta: Fishing Spots & GPS MapFree—NoYesSep 2026
4Open Sea OpenSeaMap BrowserOpen Sea OpenSeaMap BrowserFree3.2★ (5)NoNoMay 2026
5Navionics® BoatingNavionics® BoatingFree2.9★ (2.3K)NoYesSep 2026
6Sea Maps & AR: Boat GPSSea Maps & AR: Boat GPSFree—YesYesAug 2026
7SeamapsSeamapsFree—NoNoMay 2026
8OpenSeaMapOpenSeaMapFree was $0.991.0★ (1)NoYesSep 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
#84in Navigation
C-MAP: Boating screenshot 1
C-MAP: Boating screenshot 2
C-MAP: Boating screenshot 3
C-MAP: Boating screenshot 4
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
0.0(0 ratings)
FreeIn-App Purchases
Sea Maps screenshot 1
Sea Maps screenshot 2
Sea Maps screenshot 3
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.

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 August 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 August 2026.
We track 245+ sea maps apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
The app provides up-to-date nautical charts for global exploration and planning. It allows users to save points of interest and routes, record tracks, and view marine weather forecasts. Premium features include offline map downloads, full GPS functionality, shaded relief, and AIS.
Key features include a free chart viewer, Autorouting for finding the best routes, personal waypoints, track recording, thousands of points of interest, marine weather forecasts, and chart personalization. Premium users gain access to offline map downloads, GPS functionality, REVEAL Shaded Relief, high-resolution bathymetry, and AIS.