Beautiful Winlink
email experience
on your iPhone.

Connect with the world from anywhere.

apple app store

RadioMail is a modern Winlink client for iOS. It is designed to provide a beautiful and intuitive experience for sending and receiving emails via the Winlink network. Messages can be addressed to any internet email recipients as well as other Winlink users.

Winlink itself is a global network of amateur radio and authorized government stations that provide worldwide radio email using radio pathways where the internet is not present. The system is operated by licensed radio amateur volunteers. It supports email with attachments, position reporting, and is well-known for its role in interoperable emergency and disaster relief communications.

A valid amateur radio license is required to use this app.

Station Directory

Station information is automatically retrieved from Winlink and organized by proximity based on your current location. Add custom stations for peer-to-peer connections.

Peer-to-peer connections are outbound only.


Add stations to your favorites list and quickly access them by modes and bands as desired.

Radio Aware

Pair with a VARA modem or packet KISS modem via WiFi or Bluetooth. Setup radio CAT control through rigctld.

RadioMail requires a running instance of VARA modem to be available. For packet mode, Mobilinkd and DireWolf packet modems are supported.


Extend your range by configuring up to two digipeaters to be used when connecting in packet or VARA FM mode.


Access the camera directly or attach pictures from the photo library. Images are automatically optimized to reduce the transmission time.


Compose and view 100+ standard Winlink forms. GPS coordinates are pre-filled based on your location. Received forms are sharable and printable as PDFs.

Require additional subscription.


Tap into the internal GPS to automatically provide accurate location with your messages and forms. Post your position to the APRS network.


Preview attachments and annotate images. Access files locally or in iCloud. Attached files can be saved or shared via other apps.


Automatically receive messages when RadioMail is in the background. Get notification alerts when new messages come in.

Limited to telnet connections only.


Lookup contacts from the address book and access their email addresses when composing messages.

Flexible Addresses

Send or receive messages with tactical addresses or secondary accounts. Seamlessly address Winlink and internet recipients.

Meet B.B. Link, the adapter that connects iPhones and iPads to Kenwood TH-D75 and D74 radios. With it, iOS applications like RadioMail can access the radio's built-in KISS TNC packet modem. Plug the adapter into your iPhone or a USB-C power bank, turn your radio on, and you're set.
Unleash your Kenwood TH-D75 inner TNC.

Play well with others.

RadioMail is compatible with the following systems.

Client Applications

Winlink Express




RMS Packet

RMS Trimode


Modems & TNCs

Mobilinkd TNC3/4

B.B. Link Adapter

Dire Wolf software TNC

Soundmodem software TNC

VARA software modem


Kenwood TH-D74/75 *


YouTube Reviews

Loved by leading operators.

YouTube - RadioMail Winlink for iPhone

“RadioMail is a gorgeous app allowing us Winlink connections on the iPhone. Compatible with the Mobilinkd TNC, direwolf, VARA FM, and VARA HF.”

YouTube - Winlink on iPhone & iPad with RadioMail - Setup and Use, email on the GO!

“My new favorite ham radio app is RadioMail. Since I always have my iPhone on me, I can take a small radio pouch and retrieve my Winlink emails on the go! Great job!”