The Modular Approach
Though the Embrilliance Platform allows all of the Embrilliance programs to work together in a single window, each program can function entirely on its own or together with others. There are no 'levels' or 'upgrades' to the programs. Each has its own tools and functions, performing its own tasks. This modular approach means that if you only wanted the functions of one of the Embrilliance programs, you could buy just that program rather than having to build up to its 'level' to get those tools and features.
This means that you can't 'Upgrade' from one to another, but you can add any of the Embrilliance programs to the Embrilliance Platform, one at a time, in chunks, or all at once and in any order according to your needs and budget. No matter how you add them, they will work together splendidly and enhance each other.
StitchArtist's Levels
The one notable exception is in the levels of Embrilliance StitchArtist; You can run StitchArtist by itself or with any other Embrilliance Program, but StitchArtist 2 and 3 are added levels. They exist both as upgrades, meaning you can start on a lower level and upgrade, and never pay more than you would have in combination for the higher level software, or you can buy StitchArtist 2 or 3 directly and get all of the functions of the levels below it included in your purchase.