Suppose that there is a company named Megasoft. Megasoft has just launched their new software application to the public called Softronic. Which is correct: Softronic by Megasoft or Softronic from Megasoft?
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Both are fine.
This implies that Megasoft made Softronic.
This only tells you that Megasoft is the source. They might have made it, or they might just be the distributors.
I said implies, but bear in mind that salespeople often imply things that aren't true.