# Harbour Guide vs SeaKey

The clearest difference is iOS requirement: SeaKey at 13.0 against Harbour Guide's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Harbour Guide ships an update every 6 months, SeaKey every 8 months. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Harbour Guide | SeaKey |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/seakey/id6448617545/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 months** | Every 8 months |
| Monetization | Free | Free |
| Size | 39 MB | 87 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Laeremiddelforlaget-Skagerrak Forlag AS](https://appshunter.io/developer/442920067) | [Code for Nature](https://appshunter.io/developer/1829374322) |

## What reviewers say

### Harbour Guide

[App page](https://appshunter.io/ios/app/harbour-guide/id1230355564)

Access detailed information for over 5000 harbors across Northern Europe and the Mediterranean. Features include up-to-date data, advanced search, photos, charts, and recommended approaches. This planning tool is designed by experienced sailors for sailors.

**Highlights:** 5000+ harbor listings, Up-to-date harbor information, Advanced search functions, Harbor photos and charts, Recommended approach guidance, Facility search, Automatic language translation

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

**In-app purchases:** none


### SeaKey

[App page](https://appshunter.io/ios/app/seakey/id6448617545)

This toolbox helps identify seaweeds found in the German North Sea. It features an interactive key for species identification and detailed taxon profiles for verification. A glossary is also included to explain scientific terms.

**Highlights:** Interactive Identification Key, Species identification, Taxon Profiles, Glossary of scientific terms, German North Sea focus

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

**In-app purchases:** none


## Frequently asked questions

### Is Harbour Guide free?

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

### Is SeaKey free?

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

### Do Harbour Guide or SeaKey have ads?

Neither Harbour Guide nor SeaKey shows ads.

### Which is updated more often, Harbour Guide or SeaKey?

Harbour Guide ships an update every 6 months, and SeaKey every 8 months. Most recently, Harbour Guide was updated on October 7, 2026 and SeaKey on October 15, 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.*