Yes, This version is the newest at this time. the software engine is the same for all, each local distributor update the software according to bugs. (there is no real software change)
You can download the free version - it usually shown up at USA ET evening time on google play.
then you can use 7zip to unzip the downloaded files and add your maps - or to use the new ******* version.
the best way to learn iGO is by trying. just play with it - NOT when driving though.