# Sea Depth vs Sea Depth

The clearest difference is update cadence: Sea Depth at every 5 days against Sea Depth's every 3 months. Sea Depth also leads on chart position (#155 vs unranked). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Sea Depth sells 10 in-app purchases, starting at $99.99 per year and Sea Depth sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

Sea Depth ships an update every 5 days, Sea Depth every 3 months. The most recent releases landed on November 14, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | Sea Depth | Sea Depth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (17 ratings)](https://appshunter.io/ios/app/sea-depth/id6747972372/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#155** | — |
| Size | 104 MB | 23 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Seadepth Charts, LLC](https://appshunter.io/developer/1823642107) | [Ivan Blajic](https://appshunter.io/developer/1457447712) |

## What reviewers say

### Sea Depth

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

**Currently charting:** #155 Top Grossing · Navigation (US App Store)

Provides detailed offshore bathymetric charts with high-resolution shaded relief to reveal underwater structures. Offers data overlays, contour labeling, waypoint management, and drift analysis for enhanced seafloor understanding. Enables offline chart access for reliable use offshore.

**Highlights:** High-resolution shaded-relief bathymetry, Intelligent contour 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 |


### Sea Depth

[App page](https://appshunter.io/ios/app/sea-depth-depthly/id6796852299)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $3.99 | per month |
| Annual Premium | $8.99 | per year |
| Lifetime Premium | $9.99 | one-time |


## Frequently asked questions

### Is Sea Depth free?

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

### Is Sea Depth free?

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

### Do Sea Depth or Sea Depth have ads?

Neither Sea Depth nor Sea Depth shows ads.

### Which is updated more often, Sea Depth or Sea Depth?

Sea Depth ships an update every 5 days, and Sea Depth every 3 months. Most recently, Sea Depth was updated on November 14, 2026 and Sea Depth on November 13, 2026.

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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.*