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Marine RadioVHF and GMDSS training

Know the radio.
Trust your actions.

Practise maritime radio procedures with interactive VHF/DSC, NAVTEX, EPIRB and SART simulators, guided tours, calls and phonetic exercises.

Download on the App Store$5.99One-time purchase · no subscription
4interactive simulators
12app languages
0account required
  • Made for iPhoneCompatible with iPhone
  • Optimized for iPadDesigned for iPad
  • On MacMac with Apple silicon · Designed for iPad
  • On Apple Vision ProCompatible iPad app on visionOS
Marine Radio — Home

The VHF / DSC radio

Every control where
you'd find it on board.

A full fixed-mount VHF set with DSC and a handset. Press, tune and get it wrong, without ever touching a real channel.

Simulation only · never transmits
Marine Radio VHF/DSC simulator: handset, display on channel 16, DSC distress button, keypad and knob
  1. 1PTTPress to talk, release to listen. Keep transmissions short.
  2. 2Handset CH ▲ ▼Change channel without reaching for the set.
  3. 3HI / LOSwitch transmit power between 25 W and 1 W.
  4. 4DSC distressLift the red cover, press and hold to send a distress alert with your MMSI and position.
  5. 5DisplayChannel, power, GPS position, time and the channel's use.
  6. 6Soft keysContext functions shown on screen: SCAN, DW, HI/LO, CH.
  7. 7CH ▲ ▼ and ENTStep through channels and menus, confirm with ENT.
  8. 8MENU / CLEAROpen DSC calls and setup, or go back a step.
  9. 916/CJump straight to channel 16: distress, safety and calling.
  10. 10Power and volumeSwitch on and set the volume.

What's inside

Everything in one app

SimulatorsVHF/DSC, NAVTEX, EPIRB and SART with realistic controls.CallsBuild MAYDAY, PAN PAN, SECURITE and routine calls in order.PhoneticsSpell names, call signs and positions; optional speech check.ProgressMastery per device and daily goals, kept on your device.
Marine Radio — Simulators

01 · Simulators

Train on the equipment, not just the theory.

Explore realistic controls, repeat guided tasks and learn the sequence before you face real equipment.

VHF · DSC radioChannels, DSC alerts, acknowledgements
NAVTEXStations, message types, reading warnings
EPIRBActivation, test and safe handling
SARTDeployment and what it shows on radar
Marine Radio — Calls

02 · Calls

Build every call in the right order.

Learn the structure of each message, arrange its lines and repeat until the sequence is automatic.

MAYDAYMAYDAY RELAYPAN PANSECURITEROUTINE
Marine Radio — Phonetics

03 · Phonetics

Sound clear when every word matters.

Letters, digits, listening and speaking exercises for vessel names, call signs, MMSI numbers and positions.

  • Standard alphabet and maritime digit pronunciation
  • Listen, then type what you heard
  • Optional microphone check; recordings are never saved

Screens

A closer look

Marine Radio — Home
Marine Radio — Simulators
Marine Radio — Calls
Marine Radio — Phonetics
Marine Radio — Progress
12 interface languagesThe entire interface is translated, so instructions are easier to understand and you can focus on practising procedures. English · Polski · Deutsch · Français · Italiano · Español · Dansk · Norsk bokmål · Português · Svenska · Suomi · Ελληνικά.
DevicesRequires iOS 17 or later. Works fully offline.
Private by designNo account, no ads, no analytics. Progress stays on your device. Privacy →

Questions

Does the app work offline?
Yes. Simulators, calls, phonetics and progress work locally. Speech recognition may depend on device capabilities.
Why is the pronunciation exercise unavailable?
Check the Microphone and Speech Recognition permissions in iOS Settings. Availability can depend on the device and selected language.
How do I reset my progress?
Open Settings in the app and choose the option to erase training progress.
All questions and contact

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