There was a download of ReactLab KINETICS 1.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The actual developer of the software is Jplus Consulting. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software is categorized as Education Tools.
From the developer:
The ReactLab family of products currently comprise two software applications for the modeling and analysis of multivariate spectrophotometric chemical process data. Global analysis of multivariate spectrophotometric data to determine underlying reaction mechanisms together with all reaction parameters and intermediate spectra. Compatible measurements include UV-Vis, IR, Raman.
You may want to check out more software, such as Antibiotic Kinetics, ReactLab EQUILIBRIA or Kintecus, which might be similar to ReactLab KINETICS.