# C vs Sea Pro Connect

The clearest difference is in-app purchases: Sea Pro Connect at none against C's 11. Sea Pro Connect also leads on iOS requirement (12.1 vs 15.1). C's advantage is chart position (#124 vs unranked). On price, update cadence, ads and device support there is nothing between them.

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

C ships an update every 6 weeks, Sea Pro Connect every 2 months. The most recent releases landed on October 20, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | C | Sea Pro Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2.3K ratings)](https://appshunter.io/ios/app/c-map-boating/id967289980/reviews)** | — |
| Number of ratings | **2.3K** | — |
| Positive reviews | 51.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#124** | — |
| Size | 169 MB | 63 MB |
| Requires iOS | 15.1 | **12.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Navico Norway AS](https://appshunter.io/developer/842162153) | [John Crawford](https://appshunter.io/developer/1438643705) |

## What reviewers say

### C

[App page](https://appshunter.io/ios/app/c-map-boating/id967289980)

**Currently charting:** #124 Top Grossing · Navigation (US App Store)

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:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Embark Advanced Weather | $1.99 | per month |
| Embark Offline Maps USA | $2.49 | per month |
| Annual Subscription | $14.99 | per year |
| Annual subscription | $14.99 | per year |
| Region | $18.99 | per year |
| North America | $23.49 | per year |
| Maps Lakes South East USA | $25.99 | per year |
| Annual Subscription | $29.99 | per year |
| Caribbean | $32.99 | per year |
| Maps USA East Coast & Bahamas | $39.99 | per year |

**What reviewers like**

- 🚀 Accurate maps and charts
- 👍 Easy to use and intuitive
- 📍 Helpful for planning trips and routes
- 🛳️ Useful for both professionals and beginners
- ⚙️ Detailed features like shaded relief and weather info

**What reviewers complain about**

- 🐛 Frequent crashes and freezes
- ⚠️ Unreliable GPS tracking and location updates
- 🔌 Offline maps and features not working as expected
- 🤔 Confusing or missing functionality (e.g. route editing)
- 💸 Expensive subscription, not worth the cost

**Reported bugs**

- 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**

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


### Sea Pro Connect

[App page](https://appshunter.io/ios/app/sea-pro-connect/id1578079832)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is C free?

C is free to download, with in-app purchases available.

### Is Sea Pro Connect free?

Sea Pro Connect is free to download, with no in-app purchases.

### Do C or Sea Pro Connect have ads?

Neither C nor Sea Pro Connect shows ads.

### Which is updated more often, C or Sea Pro Connect?

C ships an update every 6 weeks, and Sea Pro Connect every 2 months. Most recently, C was updated on October 20, 2026 and Sea Pro Connect on October 3, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*