Scrum Pocket Training

The whole world of Scrum in your pocket.
Based on the new Scrum Guide 2020 this app offers quizzes with over 140 questions and learning content for prospective Scrum Masters and Product Owners.
Learning materials are provided to accompany the questions asked. These additional informational chapters give you a quick introduction to the underlying Scrum topics. Each chapter is clearly summarized and supported by useful graphics and quick links, which make it easy to connect the learning contents with their related definitions.
Getting into Scrum never has been easier: 
Dive in, train each day and get prepared for your Scrum career on the fly.
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The whole Scrum Guide 2020 by Ken Schwaber and Jeff Sutherland, the originators of Scrum, is available here: https://www.scrum.org/scrum-guide-2020