Here are the mobile apps i have researched available at the moment in android play store.
Solar System Explorer 3D
The app was made by using Unity 3d
enables you to pick a planet and user will be zoomed into the planet. Descriptions of asteroids, spacecraft and a “Flight mode” which enable the user to fly in the space similar to a spacecraft. The reference this application used is wikipedia probably the only thing I am against and very intrusive of pop-up adverts. Probably too advanced and less amusing to children of my target age group.
The Solar System for kids
Planets, the game explains the features of the planets by talking for example: I am earth the blue planet, then the EARTH will become thirsty and will turn light brown.
The player needs to direct the water hose to water the planet Earth which then makes Earth blue again. Simple tasks to keep the child’s attention/interest. The art style is children friendly giving the planets eyes mouth and arms to make them look and act similar to a human’s face.