Empowering boaters with comprehensive sailing intelligence for the English and Irish coasts. Download charting, tidal data, and more for offline use, ensuring a safe and enjoyable experience at sea.
Tragatta by Jan Dirk Hiemstra





8+ similar apps compared and reviewed
Whether you want more options like iStreams North Sea (NW) or a completely different take on the same concept, our curated list of 8+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.

















Empowering boaters with comprehensive sailing intelligence for the English and Irish coasts. Download charting, tidal data, and more for offline use, ensuring a safe and enjoyable experience at sea.


This advanced anchor alarm app helps sailors monitor their boat's position and safety. It offers intelligent drag alerts, community data on anchorages, and real-time hazard notifications for peace of mind while at sea.




This app allows sailors to perform traditional navigation directly on their device, offering a digital alternative to paper charts and instruments. It supports various chart types and integrates with GNSS data for real-time navigation, with options for advanced features and chart subscriptions.




Access critical information for emergency beacons and live data from Class B AIS devices. Utilize NFC for PLB, EPIRB, and MOB details, including battery status and test results. Configure settings and view live AIS targets via WiFi connection.