Harbour Guide vs SeaKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harbour Guide
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.
- 5000+ harbor listings
- Up-to-date harbor information
- Advanced search functions
- Harbor photos and charts
- Recommended approach guidance
- Facility search
- Automatic language translation
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Log in with your Harbourguide ID to get full access to 5000 harbours in Northern Europe and the Mediterranean. Harbour Guide app gives you: Access to up-to-date harbour information Advanced search functions Photo and chart of the harbour Recomended approach to the harbour Facility search Harbour photo zoom Map search and nearby harbours overview Automatic language translation The Harbour Guide series is designed and written by experienced sailing boat skippers with sailing experience from all around the world. Harbour Guides are therefore not only written by skippers for skippers, but are also used by our authors and editors when at sea. Our experience is that the Harbour Guide books are the best reference when at sea, and the online service is best as a supplement and a planning tool when at home, at the office or on the train home.
SeaKey
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.
- Interactive Identification Key
- Species identification
- Taxon Profiles
- Glossary of scientific terms
- German North Sea focus
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This toolbox assists you in identifying the seaweeds of the German North Sea. Use the interactive Identification Key for species identification. Verify your identification with additional information from Taxon Profiles. Refer to the Glossary for explanation of scientific terms.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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 September 29, 2026 respectively.
| Parameter | Harbour Guide | SeaKey |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 33.3% of reviews | — |
| Number of ratings | — | 1 — better |
| Update frequency | Every 6 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 13.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 87 MB |
| Age rating | 4+ | 4+ |
| Developer | Laeremiddelforlaget-Skagerrak Forlag AS | Code for Nature |
Customer experience
Harbour Guide
SeaKey
In-app purchases
Harbour Guide
No in-app purchases
SeaKey
No in-app purchases
