This is a phone dock in which you can put your phone in standalone. Or, you can use the dock with the top part to turn it in landscape mode to watch movies, have facetime or play games on your phone. Plus, this allows you to charge your phone by way of the micro-USB port space. Space for headphones also provided at the top and place for the front speaker for music. Cost : Nothing else but for the PLA or other printing material. Also, no special skills required. Plus, completely 3D printable, no additional equipment needed.!! Estimated Commercial Equivalent : About $10-20; not like this but similar. Estimated Savings : $9-19.