Everything seems to be at least a gigabyte; it's generally most of the whole app again, there don't seem to be any quick updates. If you're using a hotspot, there's no reason not to wait until you're in a place with fast unmetered internet.
There are 20+apps not including Substance Studio. If what you say is true then they definitely need to tell me the file size with every update. I get a least 1 set of 5 updates weekly. My post was really a feature request.
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