Just bought this NESDR Smart USB dongle from Amazon in Canada. Wrote the company asking for drivers, but they sent links which didn't help. Anybody have a better place to download drivers for Mac OS Sierra? Thanks.
Unlike Windows, RTL-SDR on macOS (or Linux) does not require any separate driver installation.
All applications bundle their own driver code (
librtlsdr, often by way of
gr-osmosdr and GNU Radio). All you need to do is install and run whichever SDR application(s) you wanted to run.
For source code, try: https://github.com/librtlsdr (there are several forks as well).
If you look inside the app bundles of Gqrx or CubicSDR (possibly other OSX apps as well), you will find copies of precompiled dylib's for librtlsdr and libusb. Those linkable dynamic shared libraries are probably the closest OS X user equivalent to a "driver" for RTL-SDR dongles such as the NooElec ones.
Yet another possibility is the CocoaRTLServer app, which makes an RTL-SDR USB device plugged into a Mac accessible via the rtl_tcp network protocol. That would allow you to plug your RTL USB dongle into one Mac (or Raspberry Pi, etc.), and use it from another.