Get the best and newest Anchor App developed by the trusted world leaders in marine forecasting - PredictWind
Monitor your boat from anywhere on your phone. Set alerts & monitor your boat at anchor, view live N2K data and weather forecasts, on or off the boat. Customise your alerts, then relax knowing your boat is in good hands, with Anchor Alert.
* Monitor your Anchor and Boat Position - Set your anchor position and preferences in quick or advanced mode, then monitor your vessel and position history on the map. Can be used with just your Phone or connected to your N2K backbone and a PredictWind DataHub.
* 3 Modes, Simple, Advanced or Datahub linked - Use Simple Mode to quickly drag the anchor into position and set a safe radius. Advanced allows you to manually enter data for increased accuracy. DataHub Link reads your N2K data and fills in the relevant info, then input how much chain you’ve let out, and you’re done!
* Set Up Alerts - Use our preset alerts or customise your own real-time and forecast alerts. The DataHub allows Anchor Alert to read your boat’s N2K network and alert you when conditions move outside your specified safe limits.
* Works On & Off The Boat - Monitor your vessel and receive alerts onboard via the DataHub’s Wi-Fi network, or head ashore and stay connected over your vessel's existing internet connection. The DataHub is compatible with the Iridium GO! exec and other satellite connections to keep you connected literally anywhere on earth.
* Get PredictWind Weather forecasts - Know exactly what weather is headed your way, with highly accurate marine forecasts by PredictWind. View world-leading weather data with Daily Briefing, Tables and Graphs.
* Find the best spots to Anchor with Local Knowledge - See anchorage ratings and reviews from other users to get the top tips and advice.
Leave your Boat in Good hands with Anchor Alert by PredictWind.
Terms & Conditions:
The Anchor Alert App is not error or bug free. You agree to use the Anchor Alert App carefully and at your own risk. We disclaim all representations and warranties of any kind, expressed or implied, including, without limitation, the warranties of merchantability and fitness for a particular purpose. We are not liable for damages, direct or consequential, resulting from your use of the Anchor Alert App. You agree to defend, indemnify and hold us harmless from any claims, losses, liability costs and expenses (including, but not limited to, legal fees) arising from any such use. You acknowledge that you have only a limited, non-exclusive, non-transferable license to use the Anchor Alert App.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://www.predictwind.com/about-us/privacy-policy/
Has good potential. However, my DataHub frequently (1-3 times a week) disconnects from Starlink WiFi with no alert. The anchor alarm thus stops working but there is no notification. I leave my anchor alert on when I move anchorages. 50% of the time, no drag alert is triggered. When the alert is triggered, it also takes too many minutes. I’d have dragged anchor onto a beech before the alert is triggered on my phone.
Developer Response
Please reach out to support@predictwind.com for help with setting up your Starlink connection. You might need to adjust the Starlink Channel to prevent disconnections or separate the Starlink Wi-Fi into 2.4 GHz and 5 GHz networks. This help article may also assist: https://help.predictwind.com/en/articles/10951102-datahub-troubleshooting-starlink-wi-fi-connections
Clunky
Sdnmaksfa
Setup is clunky but I figured it out. Received several false drag alerts. I finally just turned it off and used my other trusty anchor alarm. Not impressed
Developer Response
Hi there. We apologize for the experience you've had with the setup and drag alert. Please update your app and DataHub firmware, and if you encounter more issues, email us at support@predictwind.com so we can investigate and resolve it. We've just released a new, much-improved beta you could use instead. Thank you for your feedback! ⚓️
I really want to like it
Bm7146
I am paying 15 bucks a month and feel it’s too way too buggy for the cost. Not sure how they are justifying the cost. I really want to stay with the app as I have dayahub and can’t justify the risk of dragging and not being alerted. Several issues: 1) the app will freeze after multiple hours of running. It should wanmrn you if it isn’t still monitoring drag. 2) the n2k data freezes after some time running app, won’t refresh until you kill the app, reconnect to data hub and restart anchor alert 3) it’s not clear how to be alerted if you drag while ashore. The best I can tell is I need to connect a device to data hub and then take another device ashore.
Developer Response
Hi Bm7149,We're sorry that your first experience with the app wasn't successful. To let you know, we have now released an update which fixes all previous known issues with the apps. It has been thoroughly tested by us and a large group of customers, and is working exceptionally well. If you can write to support@predictwind.com, I can offer you a free three-month trial period to give it another try and see how much better it is now.
A Great Addition To PredictWind Software
OutdoorEyes
I have been using PrdeictWind software for sailing for a number of years and it’s been extremely helpful in deciding our safe sailing days. We purchased the upgrade to the software to help us even better when making our sailing decisions. How pleasantly surprised I was to see that PredictWind just added an anchor warning application that also syncs with the wind information in one app. Having trusted the information from PredictWind, I am surly confident that their anchor application will be just as powerful and reliable. Our sailboat was just placed in the water 2 days ago (as we only have about a 6 month season) and we’re waiting for our boat to be placed on our mourning. We won’t be staying overnight for a while since it is still cold here, but we will test it out with an an anchoring as soon as the temperature gets a bit warmer:+) Thanks for this well needed, new application and keep up the good work!
Developer Response
A Great Addition To PredictWind Software Thank you for your positive feedback! We have a new release of the Anchor App. Please email support@predictwind.com for assistance in accessing all the new features.
ACTION REQUIRED: Update your DataHub Pro firmware to version 4.50 BEFORE updating this app to ensure it connects correctly.
What's new in Anchor Alert 2.0.2
This update delivers significantly more reliable DataHub connections, clearer on-screen guidance when things go wrong, and easier sign-in for new users.
New Features
- Easier sign-in: New users can now sign in with Google, Apple, or Facebook — no separate password to remember. Existing users: tap "Continue with Email" and use your PredictWind account credentials.
- Clearer connection status: The radio waves icon (top-left of the Anchor Map) now turns green only when the app is fully connected to the DataHub AND receiving live NMEA data. If login fails, a clear error message is shown. Allow up to 10 seconds for the icon to turn green after opening the app.
Improvements & Fixes
- Connection reliability: Improved stability when starting and stopping alert sessions, including faster recovery from dropped connections. A new Connect button on the Anchor Map makes it quick to reconnect after a Wi-Fi or password issue.
- Session persistence: The app now automatically resumes your session when reopened — even after a force-close, reboot, or phone restart.
- N2K data improvements: Wind speed (TWS) conversion fixed and buffer reduced for faster sync with your chartplotter. Auto-refresh every 60 seconds has been added in Remote Mode on the Anchor Map and Dashboard pages.
- Drag Alert: Fixed a unit conversion error affecting metric-to-imperial radius calculations.
- Clearer error messages: Error messages now explain on-boat and off-boat states more clearly, with Retry buttons added to login and cancel failure prompts.
- Remote Mode: Alert Settings are locked when you're away from the boat, with a clear explanation displayed in the app.
- Alert display: Fixed text errors in alert messages and the Alert History detail view.
- Security: App credentials are now stored securely in the iOS Keychain.
- UI polish: Larger tap targets on the "Tap to Edit" screen to reduce mis-taps; Anchor Custom Coordinates updated to handle edge cases correctly.
- App stability: Resolved rare crash conditions.
Coming in the Next Update - We're actively working on these for the next release:
- Wind Direction Alert is not working in this version due.
- Enabling or disabling an alert type while a session is active does not work. As a workaround, stop your current session and start a new one to add alert types (e.g. Depth). Changing the value of an active alert (e.g. adjusting depth from 10m to 14m) works as normal.
- False alerts when Wi-Fi drops: If the app loses connection to the DataHub while your phone is connected to any Wi-Fi network, it may temporarily fall back to phone GPS and generate false Drag or Swing alerts. To resolve: reconnect your device to Wi-Fi, and the false alerts will stop.
Version 2.0.2
The developer, PredictWind Limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
Location
Identifiers
Usage Data
Diagnostics
Other Data
Data Linked to You
The following data may be collected and linked to your identity:
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Other Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
PredictWind Limited
Size
174.7 MB
Category
Navigation
Compatibility
Requires iOS 15.0 or later.
iPhone Requires iOS 15.0 or later.
iPad Requires iPadOS 15.0 or later.
iPod touch Requires iOS 15.0 or later.
Apple Vision Requires visionOS 1.0 or later.
Location
This app may use your location even when it isn’t open, which can decrease device battery life.