3DSteroid RDS is a free Android application developed by StereoMaker that allows users to create random dot stereogram (RDS) images. The app offers 28 internal 3D objects and 33 internal patterns for RDS, along with the ability to change the stereo-base and 3D object depth. Users can also choose between parallel eyes method and cross eyes method and show/hide eye marks.

The app also includes a drawing mode and allows users to save their drawing images and RDS images. Additionally, users can import depth map images as 3D objects. Overall, 3DSteroid RDS is a useful app for creating RDS images with various customization options. It is perfect for those who are interested in 3D autostereograms and Magic Eye images.