Downloads

The software is free to download and install. It asks for your company name and the licence key from your purchase email the first time it runs. Nothing is uploaded from your machine, ever.

Current versions

REX Accounts

Double-entry bookkeeping for NZ/AU. Product page.

Windows installer (.exe, 105 MB)

SHA-256 installer: 6a2cf0811543d6aced6f4a8c98cfc597290304c21169c4657d515b35393df5c0

Windows portable (.zip, 149 MB)

macOS Apple silicon (.zip, 121 MB)

SHA-256 Windows zip: 49e18856bb10516a83511de05e77f9a128c40ad31ce0a2aed0eeb7947f3cef23
SHA-256 macOS: 4f1ca8d8c915870d03347a8b069cb9bac26c432f58d19af6cc0dd6633b2496dc

REX Paperworks

Local PDF viewer, editor and converter. Product page.

Windows installer (.exe, 118 MB)

SHA-256 installer: 6c6e89bef4da05e432d19cde6ca104dff5a748358f6c592f7ade5a463db8cbbe

Windows portable (.zip, 251 MB)

macOS Apple silicon (.zip, 46 MB)

SHA-256 Windows zip: 7d8280cf567a00a3639d745515c5cf48decc7c2e66aff29bbd7aa1d7e63d6f91
SHA-256 macOS: b7456d0b588ec8be1f815bbb89f6a4fe07fe93a7d50a55e2612660f4b74bbe6f

REX Visio2DXF

Visio .vsdx/.vsd to editable AutoCAD DXF. Product page.

Windows installer (.exe, 426 MB)

SHA-256 installer: bac64a8995062d258d9e447601ed0e1db5df05505a32dc9399dc2b88fc7aecac

Windows portable (.zip, 71 MB)

macOS Apple silicon (.zip, 42 MB)

SHA-256 Windows zip: 6e637fd09ed48d2a72b70833ecb020d369572568fbdacb9073e89bf688207e52
SHA-256 macOS: 0623fa1bc8552121bd8fdaa9f3069bb057052f9c0d25d4cccf8259cb2402e286

Current builds: REX Accounts 29 September 2026; REX Paperworks and REX Visio2DXF 28 September 2026. Nothing runs in the background and nothing phones home.

Installing

Windows 10 / 11 (64-bit)

Installer (recommended): run the Setup.exe, click through, and you get a Start-menu entry, a Desktop shortcut and an Uninstall entry in Windows Settings. Accounts and Paperworks install for your user only (no admin needed); Visio2DXF asks for admin because it also sets up the free LibreOffice engine for legacy .vsd files. Windows SmartScreen may show "Windows protected your PC" the first time: click More info, then Run anyway.

Portable zip: right-click the zip, Extract All, open the folder and double-click the REX … .exe (or Create shortcuts.cmd once for shortcuts). Nothing is installed; delete the folder to remove it.

macOS 11 or later, Apple silicon (M1 or newer)

Double-click the zip, then drag the REX … .app into your Applications folder. The first time, macOS may say the app is from an unidentified developer: right-click the app, choose Open, then Open again. After that it opens normally. To uninstall, drag it to the Bin.

Activate once

On first launch enter your company name exactly as it appears in your purchase email, then paste the licence key. Activation is offline. Keep the email: you need the same name and key to reinstall or move machines.

Optional extras

Paperworks OCR (making scanned PDFs searchable) is built in on Windows; on macOS install the free Tesseract engine. Visio2DXF converts legacy .vsd files with the free LibreOffice; modern .vsdx files need nothing else.