QtiPlot is described as «professional scientific data analysd visualisation solution. It is meant to be a cheap alternative to proprietary and costly software such as Origin, SigmaPlot, Regressi or Igor Pro» and is an app in the education & reference category. There are more than 10 alternatives to QtiPlot for Windows, Linux, Mac and Android. The best alternative is SciDaVis, which is both free and Open Source. Other great apps like QtiPlot are LabPlot, OriginPro, SigmaPlot and Veusz.