Download

One download for Lite and Full: every copy is Lite until a licence is entered. Free, no account, no time limit.

macOS

The Mac beta is about to be released. Apple silicon (M1 and later), macOS 14 or newer.

Windows

The Windows version follows the Mac beta. Windows 10 or 11, 64-bit.

What your computer will say

KaikuSDR is not yet signed with Apple's or Microsoft's certificates, so the first start takes a few more clicks: macOS says the developer cannot be verified, Windows says it protected your PC. The clicks, with pictures. Updates from inside the app are not affected.

What your receiver needs

RTL-SDR dongles work through rtl_tcp, a small program the app starts for you. On a Mac, Homebrew's librtlsdr; on Windows, the WinUSB driver (Zadig) and the app fetches rtl_tcp.exe itself. Step by step.
Airspy R2 and Mini: libairspy (Homebrew on a Mac; the Airspy driver on Windows).
Other receivers as they are checked on real hardware: what's new says when.

Every version

No version has been published yet.