MRKT Manager is a desktop app for Windows or Mac. Grab the download, then follow the one-time step to get it open.
We aren't code-signed yet, so Windows and Mac both throw a one-time "are you sure" notice at any app they haven't seen before. Nothing is wrong. Here's how to get past it on each. Signing is in progress, and once it lands this step disappears.
MRKT-Manager_..._x64-setup.exe)..dmg and drag MRKT Manager into Applications.Both warnings are standard for any new app that isn't signed yet. Nothing on your machine changes without your say-so, and you can pull the app off anytime. If it doesn't look like what's above, email support@mrktmanager.app and somebody will walk you through it.
The app opens straight to sign-in. If you already have an account, it's the same email and password. If you don't, make one right there and pick your dealership. It walks you through connecting your inventory the one time, then gets on with it.