Primer: Marketing for Startups isn't like most of Google's other Android apps. For starters, it's the first to appear in the Play Store under the publisher "Google Learn." The app also happens to be such a niche product that only a specific target demographic will benefit from it.
As the name says, Primer is aimed at helping startups manage their marketing efforts. A great deal of work and knowledge goes into getting a new brand in front of consumers and establishing awareness.