C vs Zeno Connect
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
Zeno Connect
This app connects Leica GNSS smart antennas to your iPhone or iPad via Bluetooth, enabling high-accuracy geospatial data collection. It offers easy setup, real-time accuracy monitoring, and support for various correction services and height outputs.
- Bluetooth antenna connection
- Automatic position streaming
- GNSS accuracy and satellite status view
- NMEA message management
- GNSS correction service connection
- RTK profile creation
- Orthometric height support
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Zeno Connect for iOS brings the power of Leica GNSS smart antennas to your iPhone/iPad. Simply connect and configure your antenna via Bluetooth and start using your favorite data capture app. Collecting high accuracy geospatial data on your smartphone or tablet has never been easier. EASY SETUP Zeno Connect automatically streams the GNSS position from your Leica smart antenna into your iOS device. • Simply connect your antenna via Bluetooth in the iOS settings menu. • After opening a location aware app, the position will automatically stream from the antenna when a GNSS fix is available. EVERYTHING AT YOUR FINGERTIPS Zeno Connect has a clean and simple to use interface. • View current GNSS accuracy and satellite status. • Manage the NMEA messages according to your needs. • Connect or disconnect from GNSS correction services. ENABLING HIGH ACCURACY Zeno Connect supports GNSS correction services to achieve accuracies in the field of up to a centimeter. • Create and manage RTK profiles. • Connect to built-in SBAS and PPP correction services. • Auto connect to RTK for ease of use. • Wide range of real-time protocols supported. SUPPORT OF ORTHOMETRIC HEIGHT THROUGH GEOID FILES • In addition to ellipsoidal height, Zeno Connect outputs orthometric height. • Select a suitable Geoid directly from the cloud or add a local Geoid file stored on your mobile device. • Utilise orthometric heights in your data collection software. Don’t have a GNSS antenna? Read more about Leica Geosystem’s range of GNSS smart antennas here: http://leica-geosystems.com/products/gis-collectors/smart-antennas
Screenshots
Verdict
The clearest difference is in-app purchases: Zeno Connect at none against C's 11. Zeno Connect also leads on iOS requirement (13.0 vs 15.1). C's advantage is ratings volume (2.3K vs 4) and update cadence (every 6 weeks vs every 8 months). On price, rating, 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
Both are free to download. C sells 10 in-app purchases, starting at $1.99 per month. Zeno Connect asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.5 for C against 4.5 for Zeno Connect. That said, the two scores are not equally well evidenced: C has 2.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews are what separate them: 51% of C's written reviews are positive against 33% of Zeno Connect's.
C ships an update every 6 weeks, Zeno Connect every 8 months. The most recent releases landed on October 2, 2026 and September 30, 2026 respectively.
| Parameter | C | Zeno Connect |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2.3K ratings) | 4.5 (4 ratings) |
| Positive reviews | 51.0% of reviews — better | 33.3% of reviews |
| Number of ratings | 2.3K — better | 4 |
| Update frequency | Every 6 weeks — better | Every 8 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #95 — better | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 169 MB | 166 MB |
| Age rating | 4+ | 4+ |
| Developer | Navico Norway AS | Leica Geosystems AG |
Customer experience
C
Zeno Connect
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
Zeno Connect
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
Zeno Connect
No in-app purchases









