Alpha = it means the program is "under Construction"and its not complete and have many bugs
Beta = it means the program is almost Complete and its "under final test construction" and its more like the final program
Demo = it means creating the program is Complete and the demo version is for public test and see the full program features
Final = and it means the Program pass all it test and it ready for Release in Stores
Begituu ... mudeng kan .. ?