Google Primer is a free Google App to start learning business and marketing skills in minutes.
From version Google Primer 3.840.5: (Android 4.0+)
Now you can use Primer's list of skills to stay on top of your goals.
• Pick skills that match your goals and we'll show you the right lessons.
• Track your progress and update your goals anytime by visiting your profile.
Below you can find the description from Google Play:
Primer is a free, fast and easy way to learn new business and digital marketing skills. Primer works offline too, so you can take a lesson on business planning, management, sales, digital advertising, social media, content marketing, SEO, analytics, branding, and more whenever you have 5 minutes free - anytime, anywhere. You get personalized next steps after each lesson, so you can put your new skills to work right away. Get the business and marketing knowledge you need quickly and easily, and keep track of your progress to make learning new skills part of your everyday life.