MarineRadioMap is the essential VHF radio reference for boaters. Open the app and instantly see the right channels for your exact location — hailing, working, weather, and Coast Guard. No signal required.
From the Great Lakes to the Pacific Coast, Hawaii to the St. Lawrence — the right VHF channels, instantly, wherever you are.
GPS detects your marine zone automatically. See your hailing channel, working channels, weather frequency, and nearest Coast Guard station — before you even look up.
Real-time weather via Apple WeatherKit, 7-day NOAA marine forecast, wave height, swell, sea surface temperature, and live NOAA buoy data — all in one place.
Interactive map of every VHF zone across Canada, the US, and Hawaii. Tap any zone to see its channels, bridges, locks, and marinas. Search any waterway before you leave the dock.
The only app with a structured database of Trent-Severn, Rideau Canal, St. Lawrence Seaway, ICW, and Great Lakes bridges and locks — each with their VHF call channel.
Marinas across all covered regions shown on the map with VHF channel, phone, and website. Tap any marina for details.
USCG and Canadian Coast Guard stations with working channels and coverage areas. Know who to call before you need to.
Approaching a neighbouring VHF zone? The dashboard alerts you automatically — useful on the Trent-Severn or St. Lawrence where conventions change mid-trip.
All 59 VHF channels with frequencies, US and Canada permissions, simplex/duplex flag, and notes. Includes VDES 2030 transition warnings and the US mode vs International mode explainer for Channel 22.
Live buoy map with water temperature, wave height, wind speed, air pressure, and wave period from the NOAA National Data Buoy Center. Color-coded active/offline status.
Full MAYDAY script, PAN-PAN, and SÉCURITÉ procedures. Always accessible in the Reference tab — no searching when it matters most.
All channel data, zone boundaries, bridges, locks, marinas, and Coast Guard stations are bundled in the app. No cell signal required. Works perfectly on the water.
Full VHF zone coverage for Hawaiian waters including marinas, USCG Station Sand Island, and NOAA weather stations on Maui, Hilo, and Kauai.
No subscription, no renewal, no surprises. One purchase unlocks everything.
One-time purchase · No subscription · No ads
The price of one Starbucks coffee — but with zero calories.
Available on iPhone and iPad · Requires iOS 17.0 or later
MarineRadioMap ("the app") is developed by Arctic Surf Designs. This Privacy Policy explains what information the app collects and how it is used.
MarineRadioMap collects no personal information. The app does not require an account, does not use analytics, and does not transmit any user data to any server.
The following device capabilities are used locally only:
All channel data, zone boundaries, bridges, locks, marinas, and Coast Guard stations are bundled in the app as a read-only SQLite database. No user data is stored on any external server. The app stores your unit preference (miles/kilometres) and map style preference locally on your device using standard iOS storage (UserDefaults).
MarineRadioMap does not collect any personal information and is safe for all ages.
Any changes to this Privacy Policy will be reflected here and noted in the app update release notes.
Questions? Contact us at:
arcticsurfdesigns@gmail.com
Arctic Surf Designs · arcticsurfdesigns.com
For bugs, questions, or feature requests, email us directly. We aim to reply within 2 business days.
Make sure MarineRadioMap has location permission in iPhone Settings → Privacy & Security → Location Services. "While Using" is sufficient.
The Conditions tab requires an internet connection for live data. All other tabs work fully offline. If weather fails to load, try tapping Retry — you may be in a low-signal area.
Zone detection is GPS-based using polygon boundaries. If you're very close to a zone boundary the nearest zone is shown. Tap the refresh button in the top right of Near Me to re-detect.
Channel assignments are regulated and change rarely. The current data version and vintage are shown in the Settings tab. Data updates are delivered via app updates.
If you've reinstalled the app, your purchase is tied to your Apple ID. Open the App Store, tap your account, and your purchase history will restore automatically.