# C vs Nautica RdP

The clearest difference is update cadence: Nautica RdP at every 2 days against C's every 6 weeks. C's advantage is chart position (#120 vs unranked). On price, ads, in-app purchases 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 and Nautica RdP sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

C ships an update every 6 weeks, Nautica RdP every 2 days. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | C | Nautica RdP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2.4K ratings)](https://appshunter.io/ios/app/c-map-boating/id967289980/reviews)** | — |
| Number of ratings | **2.4K** | — |
| Positive reviews | 51.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#120** | — |
| Size | 169 MB | 44 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Navico Norway AS](https://appshunter.io/developer/842162153) | [Leonel Vazquez](https://appshunter.io/developer/6787325938) |

## What reviewers say

### C

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

**Currently charting:** #120 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


### Nautica RdP

[App page](https://appshunter.io/ios/app/nautica-rdp/id6787325936)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Nauti+ Monthly | $2.99 | per month |
| Nauti+ Quarterly | $7.99 | per 3 months |
| Nauti+ Annual | $29.99 | per year |


## Frequently asked questions

### Is C free?

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

### Is Nautica RdP free?

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

### Do C or Nautica RdP have ads?

Neither C nor Nautica RdP shows ads.

### Which is updated more often, C or Nautica RdP?

C ships an update every 6 weeks, and Nautica RdP every 2 days. Most recently, C was updated on October 26, 2026 and Nautica RdP on October 24, 2026.

---

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