QSO One
Ham radio without the hardware. One free app.
I built QSO One so you can get on AllStarLink, EchoLink, IAX Direct, DMR, System Fusion, and M17 from a single app, without a Raspberry Pi, a radio interface, or a weekend of Linux. It's free. Sign up with your callsign, download it for Windows or Android, and you're on the air in about five minutes. More platforms are coming.
Recommended for Windows — no antivirus warning, and it updates itself.
Not ready yet? for updates.
Get QSO One
Free with a QSO One account. Pick your platform and you're on the air in about five minutes.
Windows
Windows 10 & 11 · 64-bit
Install from the Microsoft Store: no antivirus warning, and it updates itself.
Android
Android 8.0 and above
Download the app and sign in with your callsign. Google Play is on the way.
Download for AndroidBuilt for operators, not committees.
Clean, dark, purpose-built. Every screen designed around how hams actually use it.
Windows Interface
Mobile Interface
Mobile PTT
The gap nobody filled.
IAXRpt was abandoned in 2019. DVSwitch requires technical setup most operators don't want. RepeaterPhone is iOS only. Transceive is Mac only. No one built a single modern client that runs on every platform hams actually use. QSO One does, and it goes further: AllStarLink, EchoLink, IAX Direct, DMR, System Fusion, and M17 in one app, shipping today on Windows and Android, with macOS, iOS, and Linux to follow.
Skip the hardware. Keep the hobby.
A traditional AllStarLink node means a Raspberry Pi, a radio interface, hours of Linux configuration, and anywhere from $130 to $500 out of pocket, before you've made a single contact. And when something breaks, you're the sysop. QSO One gives you everything a physical node does, from any device you already own, for free. No soldering iron required.
$130–$500
typical cost of a DIY AllStarLink node
Free
cost of QSO One
0
Raspberry Pis required
Everything you need.
A complete amateur radio client built for reliability, not complexity.
AllStarLink
Node Mode and WT Mode
Connect as a registered node or via Web Transceiver. Full IAX2 protocol, automatic HamVOIP detection, and a connection cascade that finds the right path every time.
IAX Direct
Straight to the node
Connect straight to a specific node with credentials the operator issues you. No central registry, no relay, your audio goes directly to the node.
EchoLink
Direct and Proxy
Full EchoLink support with automatic proxy fallback for cellular and CGNAT connections. Connects where other clients fail.
DMR
BrandMeister and TGIF
BrandMeister and TGIF, receive and transmit, no hotspot and no radio required.
System Fusion
YSF in software
C4FM digital voice on YSF reflectors, receive and transmit right in the app. No hotspot, no radio.
M17
Open digital voice
The open-source digital voice mode, reflectors and modules, your callsign is your ID.
Background Operation
on Android
Stay connected when you switch apps, take a call, or lock your screen. QSO One keeps your connection alive with a persistent foreground service.
One App, Every Network
AllStarLink, EchoLink, IAX Direct, DMR, System Fusion, and M17 in one interface. No switching between apps, no duplicate setup, just one place for everything.
Support development
QSO One is free and stays free. Become a Supporter for $3, $6 or $10 a month: Spark, Carrier or Beacon. Supporters are what keep the updates, bug fixes, and new features coming.
Every tier gets the Supporter badge today. The difference right now is how much you want to give. More Supporter perks are coming.
Give once
One-time gifts go through card checkout, $5 minimum.
Secure checkout is handled by Stripe and PayPal. USD.
Rather have a shirt? Browse QSO One merch.