Mars Book vs Cosmos

The Mars Book is an app that is dedicated for observing Mars which will make close approach in summer 2020. Mars will come close to Earth from September 2020 through October 2020. Closest approach will take place on October 6, 2020. Mars Book is a highly useful Mars observing app which will indicate the location of Mars visible in the sky. It shows you why Mars Close Approach will take place, and it is explained readily using animated illustrations and star charts at a viewpoint from outer Space. Mars Close Approaches taking place 23 times from the year 2003 through 2050 will be displayed and apparent retrograde motion of Mars will be displayed. Enjoy Mars Close Approach this summer with the Mars Book app!

Of course, here is a more detailed description for the Cosmos app: "Embark on an immersive journey through the depths of the solar system with Cosmos, an interactive exploration app that brings the wonders of space to your fingertips. Featuring realistic 3D models of planets, Cosmos allows you to explore the unique features of each celestial body in stunning detail. With vibrant visuals and captivating animations, this app provides a window into the unknown aspects of our solar system. Delve into the atmospheric compositions, surface features, and fascinating facts about each planet as you navigate through Cosmos. Whether you're a space enthusiast or a curious learner, Cosmos offers a comprehensive experience that enriches your understanding of astronomy. Download Cosmos now and unlock the mysteries of the cosmos with a rich collection of 3D models, detailed information, and an engaging exploration interface."