Atanua is described as 'Real-time logic simulator, designed to help in learning of basic boolean logic and electronics. It uses OpenGL hardware-accelerated rendering and a custom UI designed for a fast workflow and a very low learning curve, letting the students concentrate on learning the' and is a circuit simulator in the education & reference category. There are more than 10 alternatives to Atanua for a variety of platforms, including Windows, Mac, Linux, Web-based and Self-Hosted apps. The best Atanua alternative is Circuit JS, which is both free and Open Source. Other great apps like Atanua are Logisim, BOOLR, CircuitLab and Hradla.