UDOO is described as 'Single-board computer integrated with a microcontroller Arduino 2 compatible, designed for the education of computer science, the world of Makers and the Internet of Things' and is a single-board computer in the system & hardware category. There are more than 10 alternatives to UDOO for Linux, Android, BSD, Orange Pi and Windows. The best UDOO alternative is Raspberry Pi. It's not free, so if you're looking for a free alternative, you could try Orange Pi or OLinuXino. Other great apps like UDOO are BeagleBoard, Odroid, Minnow Board and Banana Pi.