Profi Partner is a free Android app developed by Knauf Insulation Srbija. The app is designed to assist professionals who work with mineral wool and plastering. It offers detailed video instructions on how to insulate a sloping roof, partition wall, suspended ceiling, or floor, along with useful tools such as an isolation calculator, personal calendar, vial, mini meter, noise meter, and more.

One of the most significant features of this app is the manufacturer's advice on mineral wool insulation. You can add your local point of sale, and the app will send you gifts. The app is an excellent source of information, making your work easier and more efficient.

However, it is essential to note that the app is only available in American English, and there is no subcategory provided. Despite this, Profi Partner is a must-have app for professionals in the industry.