Comparison

C vs Towly

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

Towly

Features
Read full description

Never get surprise-towed again. Towly is a community-powered map that helps drivers spot and avoid predatory towing before it costs them hundreds of dollars. Real drivers report tow traps and rate parking spots, so you know where it's safe to park — and where it isn't. See the danger on a live map Open the app to a map of nearby tow traps and community parking checks. Red means trouble, green means you're probably fine. Tap any pin for the details, photos, and what people were charged. Get warned the moment you arrive Save the places you park most — home, work, that block you always circle. Towly quietly watches them and alerts you the instant you arrive somewhere with tow reports, even with the app closed. Check any area before you go Heading somewhere new? Search an address, pick a radius, and Towly reports back exactly what's been reported there. Rate parking in seconds Just parked? Tap Safe, Risky, or Got towed, add a chip or two (free, paid, permit, time-limited), and you've helped every driver who comes after you. Report a tow trap Snap a photo of the sign or the lot, pick what happened, and put it on the map for your community. Private and simple Sign in with Apple — nothing else to set up. Your saved places and account details are never shown to other users. Towly gets better with every driver who joins. Report what you see, and let's make predatory towing a lot harder to get away with.

Screenshots

C4 screens
Towly4 screens

Verdict

The call

The clearest difference is in-app purchases: Towly at none against C's 11. C's advantage is update cadence (every 6 weeks vs every 10 months) and chart position (#116 vs unranked). On price, 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. Towly asks for nothing beyond the download.

UpkeepUpdate frequency

C ships an update every 6 weeks, Towly every 10 months. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 7 level
C versus Towly: the parameters behind the verdict, then further details
ParameterCTowly
PriceFreeFree
Rating4.5 (2.3K ratings) — better—
Positive reviews51.0% of reviews—
Number of ratings2.3K — better—
Update frequencyEvery 6 weeks — betterEvery 10 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#116 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better17.6
Further details — not scored
Size169 MB8 MB
Age rating4+4+
DeveloperNavico Norway ASNeha Hussaini

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

Towly

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

Towly

No in-app purchases

Questions

Is C free?
C is free to download, with in-app purchases available.
Is Towly free?
Towly is free to download, with no in-app purchases.
Do C or Towly have ads?
Neither C nor Towly shows ads.
Which is updated more often, C or Towly?
C ships an update every 6 weeks, and Towly every 10 months. Most recently, C was updated on October 20, 2026 and Towly on October 9, 2026.

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