# StrikeLines vs Sea Depth

The clearest difference is rating: StrikeLines at 5.0 against Sea Depth's 3.0. StrikeLines also leads on in-app purchases (none vs 10). Sea Depth's advantage is update cadence (weekly vs every 3 weeks) and chart position (#192 vs unranked). On price, ratings volume, ads 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. StrikeLines asks for nothing beyond the download.

StrikeLines holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively.

StrikeLines ships an update every 3 weeks, Sea Depth weekly. The most recent releases landed on September 19, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | StrikeLines | Sea Depth |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/strikelines/id6746804791/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/sea-depth/id6747972372/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | — | **#192** |
| Size | 66 MB | 105 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Strikelines Pensacola, LLC](https://appshunter.io/developer/1818582456) | [Seadepth Charst](https://appshunter.io/developer/1823642107) |

## What reviewers say

### StrikeLines

[App page](https://appshunter.io/ios/app/strikelines/id6746804791)

This professional GPS app helps anglers maximize their time on the water. Record fishing trips, manage waypoints, and download high-quality fishing maps for smarter planning and more rewarding adventures.

**Highlights:** Track Recording, Waypoint Management, GPX Import/Export, Purchased Fishing Maps, Interactive Map Displays, Local Data Storage

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

**In-app purchases:** none


### Sea Depth

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

**Currently charting:** #192 Top Grossing · Navigation (US App Store)

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 StrikeLines free?

StrikeLines 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, StrikeLines or Sea Depth?

StrikeLines is rated higher. StrikeLines averages 5.0 out of 5 from 4 ratings, while Sea Depth averages 3.0 from 4 ratings.

### Do StrikeLines or Sea Depth have ads?

Neither StrikeLines nor Sea Depth shows ads.

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

StrikeLines ships an update every 3 weeks, and Sea Depth weekly. Most recently, StrikeLines was updated on September 19, 2026 and Sea Depth on September 14, 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.*