full version required – Orbit - Playing with Gravity Review

This seems to be a well designed game. It looks very intriguing and exiting to play. That is, until you have to buy the full game to use the sandbox feature. It wants you to buy the game for $3. To the developer of this game: Please list this as a paid app instead of getting the user's hopes up and then saying they need to purchase the full game.
Review by Fletchly on Orbit - Playing with Gravity.