OpenSeaMap vs Nautigo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
OpenSeaMap
This app provides a free, worldwide nautical chart with detailed sea information, including lights, weather data, and harbor details. It offers chartplotting, waypoint management, and offline map caching for navigation. Users can mark locations, enter coordinates, and adjust chart zoom for optimal viewing.
- Free worldwide sea chart
- Chartplotting with tracking
- Waypoint creation and export
- Offline map caching
- Mark and search locations
- Adjustable chart zoom
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OpenSeaMap is a worldwide Opensource-project for creating a free nautical chart. Founded in 2009 the project gained a lot of attention lately adding more and more nautical information for free. Not even lights and other nautical infos are provided, but also more and more info layers like weather data, information about harbours and so on. As an add on to the OpenStreetMap this provides all missing info for nautical activities. OpenSeaMap is part of OpenStreetMap and uses the same database. FEATURES: - Free worldwide sea chart (incl. HD chart graphics) - Search for geolocations worldwide - Chartplotting with continuous tracking - Waypoints can easily be created, edited, deleted & exported - Mark locations in the chart - Zoom chart optically to fit your preferred reading size - Enter coordinates directly to be displayed in the chart - Offline caching of up to 1 million map tiles - Cleanup of chart cache data at any time To ensure future development and support of the OpenSeaMap app we encourage you to buy the In-App-Product "PRO". This will help keeping new updates and features coming. DISCLAIMER: OpenSeaMap is part of the OpenStreetMap and uses the same database. As an experienced navigator you should NEVER rely your descisions on one source of information alone. Please keep in mind that the OpenSeaMap can not replace official sea charts on bord of your boat. Please use the OpenSeaMap app only in conjunction with official sea charts and conforming to national and international regulations. Please recognize that no depth information is provided by this product. IMPORTANT: The continued use of the GPS can significantly decrease the battery level.
Nautigo
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Sua próxima aventura náutica está a um toque de distância! Descubra pacotes exclusivos Agende suas datas preferidas Convide amigos e familiares Gerencie tudo pelo celular Suporte rápido via WhatsApp Recursos destacados: Mapas interativos e rotas Fotos reais dos passeios Status de pagamento em tempo real Histórico de reservas Alertas e notificações Não perca tempo! Baixe agora e comece a planejar suas memórias inesquecíveis!
Screenshots
Verdict
The clearest difference is in-app purchases: Nautigo at none against OpenSeaMap's 1. Nautigo also leads on iOS requirement (15.1 vs 18.6). On price, update cadence, ads and device support 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. OpenSeaMap sells 1 one-off in-app purchase. Nautigo asks for nothing beyond the download.
OpenSeaMap ships an update every 2 months, Nautigo monthly. The most recent releases landed on November 1, 2026 and October 30, 2026 respectively.
| Parameter | OpenSeaMap | Nautigo |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 38.3% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 13 MB | 48 MB |
| Age rating | 4+ | 4+ |
| Developer | appdoctors UG | ACCESOWEB DESIGN LTDA ME |
In-app purchases
OpenSeaMap
- OpenSeaMap Professional$1.99
Nautigo
No in-app purchases
Questions
Is OpenSeaMap free?
Is Nautigo free?
Do OpenSeaMap or Nautigo have ads?
Which is updated more often, OpenSeaMap or Nautigo?
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