SolarCalc is an app created for the developer himself and Android users who are interested in the solar energy and electrical category, developed by SolarElectroCalc (Asanele Junior) from India. It can do almost all types of solar photovoltaics related calculations with important data such as solar irradiance and photovoltaic tilt angle.

PVsyst is a famous solar photovoltaic system design software for simulation design and data analysis, developed by PVSyst from Switzerland. As a fully-functional photovoltaic system simulation software, it is able to carry out modeling and simulation of the photovoltaic power generation system, analyze various factors affecting the electric energy production, and finally calculate the generating capacity of the entire photovoltaic power generation system. It is a software package commonly used in the photovoltaic industry for completely researching, measuring, simulating and analyzing the photovoltaic systems.