# SharpMap vs SeaBase

The clearest difference is monetization model: SharpMap at free against SeaBase's paid. SharpMap also leads on iOS requirement (14.0 vs 16.6). SeaBase's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SharpMap ships an update every 3 weeks, SeaBase every 6 days. The most recent releases landed on October 14, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | SharpMap | SeaBase |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/seabase/id6786122931/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | **Free** | Paid |
| Size | 14 MB | 80 MB |
| Requires iOS | **14.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Łukasz Stempek](https://appshunter.io/developer/1810778483) | [Yeoman Ventures LLC](https://appshunter.io/developer/6785116999) |

## What reviewers say

### SharpMap

[App page](https://appshunter.io/ios/app/sharpmap/id6745105772)

Explore detailed topographic 3D maps of mountain regions with features like slope visualization, contour lines, and 3D terrain. Essential for outdoor activities like skiing, hiking, and mountaineering.

**Highlights:** Detailed 3D topographic maps, Slope and shading visualization, Contour lines, High-resolution LiDAR elevation models, Customizable slope baselayer, 2D and 3D viewing options, Avalanche analysis support

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

**In-app purchases:** none


### SeaBase

[App page](https://appshunter.io/ios/app/seabase/id6786122931)

This offline-first sailing companion provides essential tools for life on the water. It includes an anchor alarm, nautical charts, GPS navigation, tide information, and a logbook, all functioning without a cellular signal. Enjoy a comprehensive suite of features with a single, one-time purchase.

**Highlights:** Offline nautical charts, Anchor alarm with drift detection, GPS navigation and route planning, Offline tide predictions, Harbor and anchorage finder, Auto-tracking logbook, Reference guides and emergency tools

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is SharpMap free?

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

### Is SeaBase free?

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

### Do SharpMap or SeaBase have ads?

Neither SharpMap nor SeaBase shows ads.

### Which is updated more often, SharpMap or SeaBase?

SharpMap ships an update every 3 weeks, and SeaBase every 6 days. Most recently, SharpMap was updated on October 14, 2026 and SeaBase on September 30, 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.*