C-MAP: Boating

C-MAP: Boating

Charts, Planning & Navigation

2.3K ratings
498 reviews
#78 in top-grossing Navigation
✈️ Travel
🗺️ Navigation
Free
In-App Purchases

Details

  • Released
  • Updated
  • December 23, 2015
  • June 17, 2026
C-MAP: Boating screenshot #1 for iPhone
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C-MAP: Boating screenshot #7 for iPhone
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About

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.

Free chart viewer
Autorouting
Personal waypoints
Track recording
Marine weather forecasts
Offline map downloads
High-resolution bathymetry
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What users say

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What's New in C

4.6.1

June 17, 2026

We’ve been hard at work making your experience better! In this update, we’ve focused on fixing bugs and enhancing overall performance.

Subscription plans

Embark Offline Maps USA

Provide download of offline areas in USA to be used on offline mode until the subscription is valid - the price and duration are available after click on buy/subscribe button

$2.491 Month
How to cancel C subscription ⁉️

Charts

Top Grossing

📉 78-3

Navigation

This app dropped -3 positions in Navigation chart.

Last updated on July 20, 2026.

User reviews

Disappointed

I did the free at first, then decided to do the paid version. Then when there was an update, it wiped out almost everything I had added . That is when I decided not to pay any longer.

App freezes in settings

App freezes every time I open setting using iphone 15 pro max. Will update review once developers fix.

Glitchy at best

This app used to be my go to for navigation on inland lakes and the Great Lakes. The app is buggy as can be. It continuously loses my gps location, navigation, etc. it kills any other music app that is playing while it is open. I had to completely delete it and reload it because it kept getting stuck on the settings page with just a spinning gear. I checked for updates to the app, hard rebooted my phone and still the same results each time. This is disappointing from an app that used to be so reliable.
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Navigation problems

Heading marker showing where I am and where I’m going will not stay on screen. Paid for the app and would like a refund as it is unreliable.

Boater

Looking for updates

Developer apps

User experience

🐞

Reported Bugs

4 issues

App crashes when trying to save tracks or routes

Bug

Offline maps fail to download or disappear

Bug

Depth/contour data inaccurate or not displaying properly

Bug

Login and authentication issues preventing access

Bug

Requested Features

4 requests

Add mast height/clearance feature

Feature

Improve AIS integration and functionality

Feature

Allow more customization of map views and data

Feature

Provide better customer support and communication

Feature

FAQ

What does the C-MAP: Boating app do?

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.

What are the key features of C-MAP: Boating?

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.

How much does C-MAP: Boating cost?

The app offers a free chart viewer with basic features. Additional features are available through a Premium subscription, which can be tried for free for 14 days (3 days in Denmark and Sweden). Payment is handled through your iTunes account, and subscriptions automatically renew unless turned off.

What devices is C-MAP: Boating compatible with?

The app is available on Mobile, Tablet, and PC, ensuring you can access charts and navigation tools wherever you are.

Can I use C-MAP: Boating offline?

Offline map downloads are a premium feature. While the free version requires an internet connection for full functionality, upgrading to Premium allows you to download maps for use without an internet connection.