The 1.2.11 version of 3D Solar System for Mac was available to download on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. 3D Solar System for Mac belongs to Education Tools. This free Mac app is an intellectual property of Education Terra.
From the developer:
3D Solar System is a great application to study and explore the solar system. With this utility, you can learn the names of the planets and their arrangement, observe astronomical phenomenа, visit planets, complete tests, and more. You are provided with comprehensible information about planets by reading general information and interesting facts about them. The tool comes with interactive map and solar system model in 3D.
You may want to check out more software for Mac, such as Solar Walk - 3D Solar System model, 3D Reproductive System or Solar Walk, which might be similar to 3D Solar System.
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