At least shift and tropic have different endgoals, but sub and shift seem like they have the same objectives
I'm hoping the new website and video coming out will explain this better to the general public. I think the main difference here is Shift is utilizing IPFS, which if you are not familiar with, may be something you want to research a bit.
It's crazy Tron is now valued at over 3 billion dollars while Shift is only at 40m... that's nearly a 100x difference. If the Shift Team pulls off something big this month, sky is the limit in this raging bull market.