Praemialis Mystery Shopping Software Praemialis helps you combine the latest innovation in feedback technology with the genuine opinions of your mystery shoppers. Allowing your clients take advantage of your mystery shopping software services as well as being able to offer them monitoring software for NPS and other online surveys they can use to collect feedback from their existing customers. This can all be collected, combined and analysed using the Praemialis platform, allowing you to offer your clients services other mystery shopping companies simply can’t.