solXpect is a free and open-source photovoltaic system (PV) or balcony PV system output forecast application for Android platform, developed by woheller69 from Germany. It uses direct and diffuse radiation data from Open-Meteo.com, provides precise calculations of the sun's position and projection of radiation onto your solar panel, and takes the shading and temperature coefficient into account.

Solar Master is a solar energy calculator application for Android, developed by Afeef Mohammed from Yemen. It can easily and accurately calculate the needs of solar and power systems, such as the correct angle and orientation of solar panels, the number of solar panels and batteries required, the size of power inverter/UPS, controller and charger, and how to connect the solar panels in series and parallel with the battery according to the voltage of system/inverter.

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.