Comparison

C vs SEAiq Watch

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

C

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.

Highlights
  • Free chart viewer
  • Autorouting
  • Personal waypoints
  • Track recording
  • Marine weather forecasts
  • Offline map downloads
  • High-resolution bathymetry
Features
Read full description

The C-MAP® App is the perfect companion for recreational boaters and water-lovers. Available on Mobile, Tablet or PC, you’ll always be able to access the most up to date C-MAP charts, wherever in the world you are. With full features, allowing you to explore, plan and save Points of Interest and Routes from wherever you are, the C-MAP App is the perfect aid to navigation for savvy boaters. The C-MAP App Includes: - FREE Chart Viewer - Autorouting™ – find the best route to your favourite places - Personal Waypoints - Track Recording - Thousands of pre-loaded Points of Interest - Marine Weather Forecast - Weather Along the Route - Weather Overlay - Chart Personalisation - Import & Export GPX Files – share your Routes, Tracks or Waypoints with friends - Measure Distance Tool Upgrade to Premium to unlock additional features, including: - Full GPS Functionality - Offline Map Downloads - REVEAL Shaded Relief - High-Resolution Bathymetry - Custom Depth Shading - AIS & C-MAP Traffic Try before you buy… Experience C-MAP App Premium for yourself, with a free 14-day trial (3-day trial in Denmark and Sweden). The C-MAP App updates on a continual basis, ensuring the latest, most up-to-date maps are always at your fingertips. Payment will be charged to iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. Links to Your Privacy Policy and Terms of Use. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Privacy Policy: https://www.brunswick.com/dsar Terms of Service https://appchart.c-map.com/tos.html

About

SEAiq Watch

This companion app displays critical navigation data from SEAiq Pilot on your Apple Watch. It requires an Apple Watch, iPad, and iPhone, along with SEAiq Pilot installed on your iPad. Setup is detailed within the app itself.

Highlights
  • View navigation data on Apple Watch
  • Requires SEAiq Pilot on iPad
  • Relays data from iPad to Apple Watch
  • Detailed setup and troubleshooting
  • Companion app functionality
Features
Read full description

You can see important information from SEAiq while away from your iPad. Use of this app requires the following: * An Apple Watch, Apple iPad, and Apple iPhone * SEAiq Pilot or SEAiq Pilot VPP on your Apple iPad * SEAiq Watch on your Apple iPhone Turn on Settings / Status Bar / Apple Watch in SEAiq Pilot on your iPad to enable sharing of your status information. See detailed setup, help, and troubleshooting information in SEAiq Watch. IMPORTANT: This app is ONLY useful if you already have SEAiq Pilot or SEAiq Pilot VPP (with an Enterprise Subscription) and wish to use it with your watch. This app runs on your iPhone and relays data from your iPad to your Apple Watch. This app has no function when used independently of other apps.

Screenshots

C4 screens
SEAiq Watch1 screens

Verdict

The call

The clearest difference is in-app purchases: SEAiq Watch at none against C's 11. SEAiq Watch also leads on rating (5.0 vs 4.5). C's advantage is ratings volume (2.4K vs 1) and chart position (#109 vs unranked). On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. C sells 10 in-app purchases, starting at $1.99 per month. SEAiq Watch asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

SEAiq Watch holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: C has 2.4K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

C ships an update every 6 weeks, SEAiq Watch every 3 months. The most recent releases landed on October 26, 2026 and October 19, 2026 respectively.

Scorecard5 real differences · 6 level
C versus SEAiq Watch: the parameters behind the verdict, then further details
ParameterCSEAiq Watch
PriceFreeFree
Rating4.5 (2.4K ratings)5.0 (1 ratings) — better
Positive reviews51.0% of reviews—
Number of ratings2.4K — better1
Update frequencyEvery 6 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#109 — better—
DevicesiPhone, iPad, iPodiPhone, iPod, Apple Watch
Requires iOS15.115.0 — better
Further details — not scored
Size169 MB1 MB
Age rating4+4+
DeveloperNavico Norway ASSakhalin

Customer experience

C

All ratings2,347 ratings
Positive89.3%
Neutral3.1%
Negative7.6%
Written reviews512 reviews
Positive51.0%
Neutral8.6%
Negative40.4%

SEAiq Watch

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

C

Reported bugs

4 issues
  • App crashes when trying to save tracks or routes
  • Offline maps fail to download or disappear
  • Depth/contour data inaccurate or not displaying properly
  • Login and authentication issues preventing access

Requested features

4 requests
  • Add mast height/clearance feature
  • Improve AIS integration and functionality
  • Allow more customization of map views and data
  • Provide better customer support and communication

SEAiq Watch

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

C

Subscriptions10
  • Embark Advanced Weather$1.991 Month
  • Embark Offline Maps USA$2.491 Month
  • Annual Subscription14 Days trial$14.991 Year
Show 7 more
  • Annual subscription14 Days trial$14.991 Year
  • Region14 Days trial2 variants$18.991 Year
  • North America14 Days trial$23.491 Year
  • Maps Lakes South East USA14 Days trial$25.991 Year
  • Annual Subscription14 Days trial$29.991 Year
  • Caribbean14 Days trial$32.991 Year
  • Maps USA East Coast & Bahamas14 Days trial$39.991 Year
None

SEAiq Watch

No in-app purchases

Questions

Is C free?
C is free to download, with in-app purchases available.
Is SEAiq Watch free?
SEAiq Watch is free to download, with no in-app purchases.
Which has better reviews, C or SEAiq Watch?
SEAiq Watch is rated higher. C averages 4.5 out of 5 from 2.4K ratings, while SEAiq Watch averages 5.0 from 1 ratings.
Do C or SEAiq Watch have ads?
Neither C nor SEAiq Watch shows ads.
Which is updated more often, C or SEAiq Watch?
C ships an update every 6 weeks, and SEAiq Watch every 3 months. Most recently, C was updated on October 26, 2026 and SEAiq Watch on October 19, 2026.

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