iPhone,iPad iPod touch用アプリをランキング掲載！ レビューを分析して日本で人気のあるiPhoneアプリを見つけられます。

Primer is a 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.