PROTOSchem is a versatile Android application designed for creating wiring diagrams, electrical plans, and circuit diagrams. Tailored for engineers, technicians, students, and contractors, it offers precision and flexibility in managing both industrial and residential electrical projects. Users can draw various electrical schematics and single-line diagrams essential for power distribution and control panel design. The app features an extensive library of electrical symbols, making it easy to plan and document wiring clearly and logically.

With smart editing tools, users can effortlessly align components, label connections, and manipulate elements for efficient diagram creation. The app supports smooth zooming and panning, allowing for detailed work on both small and large projects. Its user-friendly interface is optimized for smaller screens, including a day and night mode for comfortable use in different lighting conditions. Finished diagrams can be exported in multiple formats, ensuring they are ready for documentation or presentations.