iStreams North Sea (E)
Navtech Software Navigation iPhoneiPadiPod touch
iStreams North Sea (E) is a free Navigation app for iPhone and iPad by Navtech Software. Requires iOS 18.4. Updated July 8, 2026.
- Price
- Free
- on the App Store
- Size
- 40 MB
- Age 4+
- Updated
- Jul 8
- 2026 · v3.1
Screenshots
About iStreams North Sea (E)
iStreams gives you instant access to the North Sea East tidal stream atlas, aligned to the current time using High Water at Dover — even when you're offline. Whether you're sailing, navigating coastal waters, or passage planning, iStreams helps you understand tidal flow quickly and accurately. Key Features: Real-time tidal stream charts Automatically displays the correct hourly chart based on the nearest Dover High Water time. Fully offline functionality (forecast link requires a connection) No signal? No problem. All charts and tools work without internet access. Automatic chart updates As time progresses, the app switches to the next valid tidal period. Swipe forward and backward through tidal hours with ease. Pinch to zoom and drag to explore details. Toggle between Local Time and UTC. Navigation Tools: Interpolated Rate Calculator * Instantly calculate stream rate between neaps and springs. Tidal Set Tool (In-App Purchase) * Measure the true direction of tidal stream arrows with precision. Course to Steer (CTS) (In-App Purchase) * Calculate the correct heading to maintain your intended course. How It Works: iStreams automatically selects the nearest High Water at Dover and displays the corresponding tidal stream chart. Want to plan ahead or review earlier conditions? Simply select a date or swipe forward or backward through the tidal hours to view past or future data. Why Choose iStreams? Designed for sailors, navigators, and coastal users Fast, clear, and easy-to-use interface Accurate tidal data when you need it most
What’s new
Version 3.1 · Updated July 8, 2026
Updates and bug fixes
App privacy
The developer, Navtech Software, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to iStreams North Sea (E)
Looking for apps like iStreams North Sea (E)? Here are 6 similar apps on the App Store. The highest rated is smartCHECK (4.0/5), and 3 of the 6 are free to download.
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Tidal Stream Atlas Europe
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Stroomatlas (Interactief)
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World Ensigns
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Tragatta
-
Boatie Logbook
-
smartCHECK
4.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| iStreams North Sea (E) | – | Free | July 8, 2026 | |
| Tidal Stream Atlas Europe | – | Free | Aug 29, 2026 | Compare |
| Stroomatlas (Interactief) | – | 6.99 USD | Jul 4, 2026 | Compare |
| World Ensigns | – | 14.99 USD | Apr 16, 2024 | Compare |
| Tragatta | – | Free | Aug 8, 2026 | Compare |
| Boatie Logbook | – | Free | Oct 17, 2026 | Compare |
| smartCHECK | 4.0 / 5 (9) | 13.99 USD | Sep 30, 2026 | Compare |