The Arduino design is open-source, meaning anyone is free to copy the plans and build their own. There’s are hundreds of Arduino-compatible boards out there, some of which are identical to the original and some of which add additional features like built-in wireless communications modules.
We supply the ultimate kits with a clone called FunDuino. These boards are 100% Arduino compatible – so whatever you can do with the Arduino Uno can be done with the equivalent FunDuino model, including any number of “shields” which attach on top. From a programming point of view, you program exactly as you would for the Arduino, using the Arduino software suite. The only difference is the price! There is absolutely no difference in components on the board, features, functionality, or durability.