# Rhodan vs Sea Depth

The clearest difference is rating: Rhodan at 5.0 against Sea Depth's 4.2. Rhodan also leads on in-app purchases (none vs 10). Sea Depth's advantage is ratings volume (16 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Sea Depth sells 10 in-app purchases, starting at $99.99 per year. Rhodan asks for nothing beyond the download.

Rhodan holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Sea Depth has 16 ratings behind it against 1, so its average is the more settled of the two.

## The numbers

| Metric | Rhodan | Sea Depth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rhodan/id6738508590/reviews)** | [4.2 (16 ratings)](https://appshunter.io/ios/app/sea-depth/id6747972372/reviews) |
| Number of ratings | 1 | **16** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 5 days |
| Monetization | **Free** | Free with in-app purchases |
| Size | 96 MB | 106 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Rhodan Marine Systems of Florida, LLC](https://appshunter.io/developer/1781070429) | [Seadepth Charts, LLC](https://appshunter.io/developer/1823642107) |

## What reviewers say

### Rhodan

[App page](https://appshunter.io/ios/app/rhodan/id6738508590)

Transform your iPhone into a remote control for your trolling motor. Monitor real-time performance data and adjust motor settings wirelessly for a seamless fishing experience.

**Highlights:** Wireless motor control, Real-time performance data, Custom motor configuration, Over-the-air firmware updates, Remote steering and mode changes

**Features:** macOS Compatibility

**In-app purchases:** none


### Sea Depth

[App page](https://appshunter.io/ios/app/sea-depth/id6747972372)

Visualize detailed underwater terrain with high-resolution bathymetric charts. Gain deeper insights into seafloor structure, contours, and terrain for offshore activities. Includes optional data overlays and waypoint management for enhanced situational awareness.

**Highlights:** High-resolution shaded-relief bathymetry, Detailed depth contours with intelligent labeling, Optional data overlays (pipelines, bottom composition), GPX waypoint import/export, Drift Test tool, Offline chart access

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Charts Access | $99.99 | per year |
| Western GOA 50% | $150.00 | one-time |
| Eastern GOA 30% | $209.99 | one-time |
| Cental GOA 20% | $239.99 | one-time |
| Eastern GOA 20% | $239.99 | one-time |
| Cental GOA | $300.00 | one-time |
| Western GOA | $300.00 | one-time |
| Eastern GOA | $300.00 | one-time |
| Florida-West Coast | $300.00 | one-time |
| South Florida/Northern Bahamas | $300.00 | one-time |


## Frequently asked questions

### Is Rhodan free?

Rhodan is free to download, with no in-app purchases.

### Is Sea Depth free?

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

### Which has better reviews, Rhodan or Sea Depth?

Rhodan is rated higher. Rhodan averages 5.0 out of 5 from 1 ratings, while Sea Depth averages 4.2 from 16 ratings.

### Do Rhodan or Sea Depth have ads?

Neither Rhodan nor Sea Depth shows ads.

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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.*