We have just finished working on a new module called “Determination of measurement uncertainty”, which enhances the functionality of the Laboratory Suite. The software allows for analysing laboratory test results, taking into consideration various sources of measurement uncertainty. The graphical user interface makes it possible to enter formulas and results of specific measurements easily, and then to calculate uncertainty. The software automatically carries out statistical analyses and generates a comprehensive and ready-to-use report. The GUI is available in Polish and English. We invite you to read the full description of the software.