Microsoft also has Flow, which can kind of do a lot of the same things as well, although more on the if-this-then-that type of model. It's actually pretty handy, since that seems to be the best way to do workflows that create issues into VSTS/AzureDevOps, or generate notifications out of it.
Logic Apps and Flow have the same tech and platform (shared code base). One requires an Azure subscription, the other doesn't so is aimed at Office/IT rather than devs and platform people
