Free · auto-updates

Download POSRex

One app for Windows and macOS. Your license and data move with you across every computer.

POSRex for Windows

v1.0.68 · 132 MB · 64-bit

  • Windows 10 or 11 (64-bit)
  • 4 GB RAM, 500 MB free disk
  • Thermal printer optional (ESC/POS)

v1.0.68 · free · auto-updates

POSRex for macOS

v1.0.66 · 120 MB · Apple Silicon

  • macOS 11 Big Sur or newer
  • Apple Silicon (M1 or later)
  • 4 GB RAM, 500 MB free disk

v1.0.66 · free · auto-updates

Up and running in three steps

01

Download & install

Grab the installer for your computer and run it. Setup takes under a minute.

02

Enter your license key

Activate with the key from your purchase. It binds to this computer and moves with you.

03

Start selling

Add products, open the register, and ring up your first sale — online or off.

First-time install on Windows? You may see a “Windows protected your PC” screen — tap More info → Run anyway. POSRex is safe; this just appears for apps outside the Microsoft Store.