iStreams Lands End vs navCenter

iStreams gives you instant access to the Lands End tidal stream atlas, aligned to the current time using High Water at Devonport — 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 Devonport 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. Show boat position on the chart 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 Devonport and displays the corresponding tidal stream chart. Want to plan ahead or review earlier conditions? Simply 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

navCenter (nC) enables your iPhone/iPad/Mac/Watch to operate as a multifunctional display (MFD) for NMEA data (including AIS) and as an autopilot remote control for SeaTalk1™ and SeaTalkNG™ autopilots. navCenter connects to your boats instruments via a WiFi gateway and can handle both NMEA2000 and NMEA0183 formats simultaneously. Information on WiFi gateways can be found here: https://www.guardiandigital.tech/navCenterGatewaysMultiplexers.html navCenter is able to control SeaTalkNG™ and SeaTalk1™ autopilots when partnered with a compatible WiFi multiplexer or Gateway. More information on the autopilot remote control can be found here: https://www.guardiandigital.tech/navCenterAutopilotRemote.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ privacy policy: https://www.guardiandigital.tech/html/privacyPolicy.html