Simply wrong tidal information. Dangerous
Don’t use
Response from developer
The app is available to download and try for free, using 2019 data, if you like it subscribe for 2020 (or current year) tidal data
Free
In-App Purchases
Details
About
This navigation app provides real-time tidal stream charts for West Scotland, automatically aligning with High Water at Dover. It offers full offline functionality for sailing and coastal navigation, with tools to calculate stream rates and measure tidal direction. Plan your passage with ease using its intuitive interface.
✓Real-time tidal stream charts
✓Offline functionality
✓Automatic chart updates
✓Swipe through tidal hours
✓Interpolated Rate Calculator
✓Tidal Set Tool (IAP)
✓Course to Steer (IAP)
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What's New in iStreams West Scotland
3.09
May 30, 2026
Chart data card now draggable to preferred position Fix for malformed text when user has set large font for device
2
In-App Purchases
$2.99
6 Month Subscription
6 Month Subscription
User reviews
Developer apps
FAQ
What is iStreams West Scotland?
iStreams West Scotland is a navigation app that provides real-time tidal stream charts for the West Scotland region. It automatically aligns with High Water at Dover and offers full offline functionality for users.
Is iStreams West Scotland free to use?
The core features of iStreams West Scotland are free to use, including real-time tidal stream charts and offline functionality. However, advanced tools like the Tidal Set Tool and Course to Steer (CTS) require an in-app purchase.
Does iStreams West Scotland work offline?
Yes, iStreams West Scotland offers full offline functionality for its charts and tools, meaning you can use it without an internet signal. Only the forecast link requires a connection.
What devices support iStreams West Scotland?
iStreams West Scotland is available for iPhone and iPad devices. It is rated for ages 4 and up.
How often is iStreams West Scotland updated?
The latest version of iStreams West Scotland is 3.09, last updated on May 30, 2026. Updates ensure the app remains reliable and accurate for navigation.
Can I calculate tidal stream rates with iStreams West Scotland?
Yes, iStreams West Scotland includes an Interpolated Rate Calculator that allows you to instantly calculate stream rates between neaps and springs. This is a core feature available for free.
What are the in-app purchases in iStreams West Scotland?
The in-app purchases for iStreams West Scotland include the Tidal Set Tool, which precisely measures the true direction of tidal stream arrows, and the Course to Steer (CTS) tool, which calculates the correct heading to maintain your intended course.
How does iStreams West Scotland determine tidal times?
iStreams West Scotland automatically selects the nearest High Water at Dover and uses that time to display the corresponding tidal stream chart for West Scotland. This ensures accurate, real-time data.
