Comparison

C vs SAILORSIM

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

SAILORSIM

Features
Read full description

Take the helm and sail or motor across the Mediterranean, from the Costa Dorada to the Balearic Islands. SailorSim is a sailing simulator with a 3D view and a nautical chart. Hoist the sails, trim to the wind, manoeuvre under engine inside the harbour and moor alongside the pontoon. Or set out on a long passage from Salou to Mallorca or from Palma to Menorca, with day, night and bad weather passing over the sea. THREE BOATS - Cruising sailboat, speedboat and jet ski, moored side by side in Salou harbour. Choose which one to take out. MISSIONS - Leaving harbour: tap the bollard to cast off and reach open water without touching anything. - Sailing: learn to beat, reach and run with a shifting wind. - Salou regatta: find the start line, win the position and round the marks before your rivals. - Speedboat and jet ski races: from Salou to the La Pineda breakwater through the gates, alone against the clock or against a rival. Set the sea state before the start and dodge the unexpected: pedal boats, anchored boats with divers down and sudden squalls. - Guided navigation: follow the route waypoint by waypoint. - Mooring: enter harbour and berth with precision. - Salou and its coves: explore Cap de Salou among beaches, cliffs, shallows and buoys. - Mahón harbour entrance: sail up one of the longest natural harbours in the Mediterranean to the pontoon. - Passages: Salou–Palma, Salou–Mahón and Palma–Mahón. THE SEA AND THE BOAT - Wind with changing direction and strength, apparent and true wind indicators. - Sea state: calm, smooth, slight, moderate or rough. Head-on you slam into the waves, beam-on a breaking sea can knock you down, and on the quarter the boat broaches. - Gusts and knockdowns: with too much sail the boat lies over. Ease the sheets to bring her up and reef in time. - Breaking waves, capsizes and dismasting: clear the rigging and watch the propeller. - Visible anchoring, with chain, trip line and swinging. - Fuel consumption: if you run dry, use the reserve can, carry on under sail or call for help. Refuel on arrival in port. - Buoyage: lateral marks, isolated danger marks, beach buoys and lighthouses with their night flashes. - Marine traffic: container ships, ferries, tankers, fishing boats, sailboats and other vessels. - Coast with relief and shallow waters: watch out for rocks and shoals, you can run aground. RADIO AND RESCUE - VHF radio with voice messages. PAN-PAN and MAYDAY calls. - S.O.S. button: send a MAYDAY, receive confirmation and wait for the rescue boat, which tows you to the nearest port so you can carry on sailing. CONTROLS - Wooden helm wheel, the same on every device. Optional tilt steering. - Optimised for the foldable iPhone. - 3D view with smooth zoom and free camera: tap a boat or object to centre on it and double-tap to return to yours. - Nautical chart with the mission route. - Heading pilot and route pilot: "Follow route" and "Back to route" if you have drifted off course. - Time acceleration up to ×8, and up to ×512 on the open sea during the Balearic passages. - i help button: explains every icon and control. - Change the wind and sea state whenever you like. - Restart the mission at any time. Save and resume passages. FOR IPAD AND IPHONE Interface adapted to each screen, with every control also on iPhone. Optimised for the foldable iPhone. Spanish and English, with language switching without restarting the game, and a full in-app manual. Free, no ads and no data collection. Map data based on OpenStreetMap (© OpenStreetMap contributors, ODbL licence). SailorSim is a simulation game. It is not intended for real navigation and does not replace official nautical charts, on-board equipment or skipper training.

Screenshots

C4 screens
SAILORSIM4 screens

Verdict

The call

The clearest difference is in-app purchases: SAILORSIM at none against C's 10. SAILORSIM also leads on update cadence (every 2 days vs every 6 weeks). C's advantage is chart position (#101 vs unranked) and iOS requirement (15.1 vs 17.0). 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 9 in-app purchases, starting at $1.99 per month. SAILORSIM asks for nothing beyond the download.

UpkeepUpdate frequency

C ships an update every 6 weeks, SAILORSIM every 2 days. Both last shipped on November 1, 2026.

Scorecard4 real differences · 7 level
C versus SAILORSIM: the parameters behind the verdict, then further details
ParameterCSAILORSIM
PriceFreeFree
Rating4.5 (2.4K ratings) — better—
Positive reviews51.0% of reviews—
Number of ratings2.4K — better—
Update frequencyEvery 6 weeksEvery 2 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
Best chart rank#101 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.1 — better17.0
Further details — not scored
Size169 MB21 MB
Age rating4+4+
DeveloperNavico Norway ASPablo Kessler Saiz

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

SAILORSIM

Not enough reviews yet to summarise bugs or requests.

In-app purchases

9 purchases

C

Subscriptions9
  • Embark Advanced Weather$1.991 Month
  • Embark Offline Maps USA$2.491 Month
  • Annual Subscription14 Days trial$14.991 Year
Show 6 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
  • Caribbean14 Days trial$32.991 Year
  • Maps USA East Coast & Bahamas14 Days trial$39.991 Year
None

SAILORSIM

No in-app purchases

Questions

Is C free?
C is free to download, with in-app purchases available.
Is SAILORSIM free?
SAILORSIM is free to download, with no in-app purchases.
Do C or SAILORSIM have ads?
Neither C nor SAILORSIM shows ads.
Which is updated more often, C or SAILORSIM?
C ships an update every 6 weeks, and SAILORSIM every 2 days. Most recently, C was updated on November 1, 2026 and SAILORSIM on November 1, 2026.

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