MacOSaiX is described as 'allows you to automatically create mosaics from images' and is an app in the Photos & Graphics category. There are nine alternatives to MacOSaiX for a variety of platforms, including iPhone, iPad, Windows, Linux and PortableApps.com. The best alternative is AndreaMosaic, which is free. Other great apps like MacOSaiX are Percolator (Paid), FMEdda (Free Personal), Mosaic Creator (Paid) and Tipix (Free).
Foto-Mosaik-Edda is software which allows you to a photo mosaic picture, which is made up of tiny photos which are fitted together in such a way that, from a distance, they blend together to create the appearance of a new picture.
Mosaic Creator is professional mosaic tool. You can create your own picture mosaic. It creates large clickable thumbnails with unlimited number of cells. There is full range of options to control image distribution and enhanced rendering parameters.