This app use Apple ARKit which means that you do not need any ARMark (No more augmented reality markers printed on paper).
But a few steps is required. Please :
1- Allow camera use (If you disabled by mistake, you can enable from the "AR Solar System: AR Planets" switch in Settings / Privacy / Camera).
2- After starting our app scan your floor, table or ground by rotating & moving your iPhone or iPad slowly. The yellow dots means that AR scan is in progress. It may take couple of seconds to find a surface or plane, please keep moving & rotating your device slowly. When a surface or plane is found you can see Solar System :)
3- If you want to watch a short video how to use our app please copy & paste this link to your browser:
https://www.youtube.com/watch?v=Mn26aaeOnXo
If you like our app please rate & leave reviews.
If there is a feature please state in the comments we are constantly checking reviews. We will happy to develop our app with the new features that you requested.
Thank very much for using our app & your supports motivate us to work more :)