Desktop app · Windows

Your streaming booth,
ready to go.

One minute to install. Then: cameras plugged in, phone connected, ready for your first live.

Windows 10 or later · 64-bit

Updated July 24, 2026

On macOS?macOS support is in the works. Create your account now and you'll be notified as soon as it's ready.

During install

Windows will show a warning — that's expected.

Cardcastr is in closed beta and doesn't have a Windows signing certificate yet (it's expensive, it's coming). SmartScreen blocks any unsigned executable by default, known or not. Two clicks and you're through:

  1. 1Click "More info"
  2. 2Click "Run anyway" — install starts right away
Windows Defender SmartScreen

Windows protected your PC

Microsoft Defender SmartScreen prevented an unrecognized app from starting.

More info1
Windows Defender SmartScreen

Windows protected your PC

App: Cardcastr-Setup.exe

Publisher: Unknown

Don't runRun anyway2

Next

1

Install

Run Cardcastr-Setup.exe and follow the installer — nothing to configure.

2

Sign in

With your Cardcastr account, or create one if you haven't yet.

3

Plug in your cameras

PC live, phone via QR code — nothing to install on the phone side.

4

Go live

On Whatnot, a few clicks from the Régie.