QuickMAN is described as 'Download QuickMAN - Fast Mandelbrot Generator for free. QuickMAN is a Mandelbrot fractal generator with multicore support. ASM-optimized code reaches billions of iterations per second on fast CPUs'. There are five alternatives to QuickMAN for Windows, Linux, Online / Web-based, Self-Hosted solutions and Mac. The best alternative is Xaos, which is both free and Open Source. Other great apps like QuickMAN are Ultra Fractal (Paid), ChaosPro (Free), XFractLab (Free) and fractal.parts (Free, Open Source).
XaoS is an interactive fractal zoomer. It allows the user to continuously zoom in or out of a fractal in a fluid, continuous motion. This capability makes XaoS great for exploring fractals, and it’s fun!
Ultra Fractal is a fractal generation and rendering software application. The program works using a similar paradigm to Photoshop, allowing multiple layers to be combined using layer blending modes, transformations and custom fractal formulas.
XFractLab is a program to render fractals using specialized formulas. Built in compiler lets you image a wide variety of fractals while maintaining high performance. Multithreaded renderer scales with any number of cores, allowing to use your machine to its full capabilities.