# C vs One

The clearest difference is rating: C at 4.5 against One's 2.8. C also leads on review sentiment (51% vs 18%) and ratings volume (2.3K vs 176). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. C sells 10 in-app purchases, starting at $1.99 per month and One sells 1 in-app purchase, starting at $24.99 per year. Whichever you choose, the download price is not the number that matters.

C holds the better App Store score, 4.5 against 2.8. That said, the two scores are not equally well evidenced: C has 2.3K ratings behind it against 176, so its average is the more settled of the two. Written reviews point the same way: 51% of C's written reviews are positive against 18% of One's.

Both ship on a similar rhythm, roughly every 6 weeks. The most recent releases landed on September 23, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | C | One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (2.3K ratings)](https://appshunter.io/ios/app/c-map-boating/id967289980/reviews)** | [2.8 (176 ratings)](https://appshunter.io/ios/app/one-boat-network/id1527821908/reviews) |
| Number of ratings | **2.3K** | 176 |
| Positive reviews | **51.0% of reviews** | 18.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | #102 | **#59** |
| Size | 169 MB | 121 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Navico Norway AS](https://appshunter.io/developer/842162153) | [Johnson Outdoors Inc.](https://appshunter.io/developer/775931463) |

## What reviewers say

### C

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

**Currently charting:** #102 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


### One

[App page](https://appshunter.io/ios/app/one-boat-network/id1527821908)

**Currently charting:** #59 Top Grossing · Navigation (US App Store)

Integrate your boat's electronics into a single control center. Manage navigation, trolling motors, and shallow water anchors from your smartphone. Access detailed maps and update device software seamlessly.

**Highlights:** Integrated boat electronics dashboard, Digital remote control for trolling motors and anchors, Waypoint management and transfer, Customizable lake and coastal maps, Software updates for boat devices, Access to product manuals and tutorials

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Fishing Maps of USA and Canada | $24.99 | per year |


## Frequently asked questions

### Is C free?

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

### Is One free?

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

### Which has better reviews, C or One?

C is rated higher. C averages 4.5 out of 5 from 2.3K ratings, while One averages 2.8 from 176 ratings.

### Do C or One have ads?

Neither C nor One shows ads.

### Which is updated more often, C or One?

C ships an update every 6 weeks, and One every 6 weeks. Most recently, C was updated on September 23, 2026 and One on September 26, 2026.

### Which is more popular, C or One?

C currently peaks at #102 in the App Store charts, and One at #59. Chart position reflects recent download velocity rather than total install base.

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