Everything a node does.
Nothing a node costs.
QSO One is a complete amateur radio client for AllStarLink, EchoLink, DMR, and M17. Here's what's inside.
Full AllStarLink support, two connection modes.
QSO One connects to the AllStarLink network using the full IAX2 protocol — the same protocol used by physical nodes. Choose how you connect based on your registration status.
- Node Mode — connect using your registered AllStarLink node number and credentials
- WT Mode (Web Transceiver) — connect as a guest without a registered node
- IAX Direct — connect straight to a specific server with operator-issued credentials
- Automatic HamVOIP server detection for optimal routing
- Four-step connection cascade that finds the right path every time
- Full DTMF support for controlling nodes and repeaters
- Directory of 39,000+ AllStarLink nodes with search and favorites
Setting up IAX Direct? Read the setup guide →
AllStarLink screen
Screenshot coming soon
EchoLink that works everywhere.
Many EchoLink clients fail on cellular or behind CGNAT. QSO One includes automatic proxy fallback, so you stay connected even when direct UDP is blocked.
- EchoLink Direct — standard UDP connection for home and office networks
- EchoLink Proxy — automatic fallback when direct connection fails
- Works on cellular, CGNAT, and restricted networks where others fail
- Directory of 6,500+ EchoLink stations and repeaters
- Full DTMF support
- Requires a valid amateur radio license and EchoLink registration (free)
EchoLink screen
Screenshot coming soon
Full DMR, two networks, no hotspot.
QSO One brings DMR to your phone and desktop in software, with no hotspot or radio required. Connect to BrandMeister or TGIF, receive and transmit, and switch talkgroups right in the app.
- BrandMeister — connect to the world's largest DMR network, receive and transmit
- TGIF — connect to the TGIF network with the same one-tap simplicity
- Switch between networks anytime, your credentials for both stay saved
- In-app talkgroup switching that subscribes you on the fly
- Searchable talkgroup catalog with a live “last heard” activity feed
- On-screen, spacebar, and Bluetooth PTT, the same controls as every other network
- No hotspot, no radio, no extra hardware
DMR screen
Screenshot coming soon
M17, the open digital voice mode, built in.
M17 is the fully open-source digital voice protocol, made by and for amateur radio. No proprietary vocoder, no central database, your callsign is your ID. QSO One connects you straight to the M17 network.
- Reflector and module selection — pick any M17 reflector and module right in the app
- Open Codec 2 voice — fully open-source, no proprietary codec or licensing
- No separate registration — your callsign is your ID
- Reflector directory with search and favorites
- Receive and transmit, all in software
- On-screen, spacebar, and Bluetooth PTT
M17 screen
Screenshot coming soon
Stays connected. Even when your phone doesn't.
Most radio apps drop their connection the moment you switch apps or lock your screen. QSO One keeps the session alive with a persistent foreground service — designed for real-world mobile use.
- Persistent foreground service keeps your session alive on Android
- Stay connected while switching apps, taking calls, or locking screen
- Optimized for cellular networks with reconnect logic on network switches
- Low battery impact — connection maintained without excessive wake locks
- iOS support coming soon
Android background screen
Screenshot coming soon
One license. Every platform.
Your $24.99 license covers all current and future platforms. When iOS, macOS, and Linux launch, you're already covered.
Windows
Available now
Windows 10 & 11 (64-bit)
Android
Available now
Android 8.0 and above
iOS
Coming soon
macOS
Coming soon
Linux
Coming soon
More with QSO One Pro.
The base app is a fully capable client. Pro adds the power-user tools: logging, scanning, net finding, and more. New features ship regularly.
Net Finder
Browse active nets on AllStarLink and join with one tap.
Keyed Nodes Indicator
See which nodes are actively transmitting in real time.
QSO Logging with ADIF export
Log every contact and export standard ADIF files for your log software.
Scanner Mode
Cycle through your favorite nodes automatically and stop on activity.
Audio Recording
Record sessions locally for review or sharing.
Callsign Lookup
Tap any callsign to pull up FCC license data instantly.
DX Alerts
Get notified when rare DX stations appear on the network.
Net Reminders
Schedule reminders for your regular nets so you never miss a check-in.
+more to come
New Pro features ship regularly.