C vs Aero App
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Free chart viewer
- Autorouting
- Personal waypoints
- Track recording
- Marine weather forecasts
- Offline map downloads
- High-resolution bathymetry
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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
Aero App
This app provides flight crews with essential aeronautical publications and data for mission execution. It enhances situational awareness and navigation safety with access to global airfield information, flight planning tools, and real-time traffic and weather data.
- Digital Aeronautical Flight Information
- Georeferenced Airport Diagrams
- Instrument Approach Procedures
- Integrated E6B flight computer
- Moving Map with navigational overlays
- Real-time traffic and weather data
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The NGA Aeronautical Application (Aero App) is an Electronic Flight Bag (EFB) mobile application developed by and for the DOD and FAA flight crews. The Application provides flight crews with the flight publications and data required to execute the unique mission of the U.S. War Fighter. Aero App increases situational awareness and improves safety of navigation by providing easy access to aeronautical information including Digital Aeronautical Flight Information File (DAFIF), Digital Flight Information Publications (D-FLIP) products, including Georeferenced Airport Diagrams and Instrument Approach Procedures (IAPs), Arrival Procedures, Departure Procedures, Takeoff and Landing Minimums, Supplements, Airfield Qualification Program (AQP), Giant Reports, Electronic-Instrument Procedure Library and Host Nation Charts. Aero App is designed to enhance the use of aeronautical Flight Information Publication (FLIP) data and manage individual FLIP products. As the world's authoritative source for aeronautical data, NGA is able to provide flight crews access to data on over 47,000 airfields worldwide via the application. In addition, the Aero App features an integrated E6B flight computer for flight planning on the ground and in the air calculations; a note pad; access to user documents and custom user maps. Connect to the internet, GPS or an ADS-B device to view traffic and weather information such as NOTAMs, METARs, TAFs, and Air Force weather. Overlay navigational data on the Moving Map such as Military Training Routes, Air Refueling Routes, Contract Fuel Locations, Terrain, Special Use Airspaces and much, much more. Aero App is FREE and authorized for the following: US military, government agencies, Civil Air Patrol, foreign military partners and contractors flying missions in support of the DOD. For more information on the NGA Aero App visit https://aeroapp.info.
Screenshots
Verdict
The clearest difference is rating: C at 4.5 against Aero App's 3.3. C also leads on ratings volume (2.4K vs 41) and update cadence (every 6 weeks vs every 3 months). Aero App's advantage is in-app purchases (none vs 11) and review sentiment (63% vs 51%). On price and ads 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
Both are free to download. C sells 10 in-app purchases, starting at $1.99 per month. Aero App asks for nothing beyond the download.
C holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: C has 2.4K ratings behind it against 41, so its average is the more settled of the two. Written reviews complicate that: 51% of C's written reviews are positive against 63% of Aero App's, so the app with the better star average is not the one people write more warmly about.
C ships an update every 6 weeks, Aero App every 3 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.
| Parameter | C | Aero App |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.4K ratings) — better | 3.3 (41 ratings) |
| Positive reviews | 51.0% of reviews | 62.5% of reviews — better |
| Number of ratings | 2.4K — better | 41 |
| Update frequency | Every 6 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #94 — better | — |
| Devices | iPhone, iPad, iPod — better | iPad |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 169 MB | 129 MB |
| Age rating | 4+ | 9+ |
| Developer | Navico Norway AS | National Geospatial-Intelligence Agency |
Customer experience
C
Aero App
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
Aero App
Not enough reviews yet to summarise bugs or requests.
In-app purchases
C
- Embark Advanced Weather$1.991 Month
- Embark Offline Maps USA$2.491 Month
- Annual Subscription14 Days trial$14.991 Year
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- 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
Aero App
No in-app purchases









