Regardless of what platform you’re playing on, the objectives of Minecraft are the same across the board. This gives every player access to the means to build the world around them as they see fit. That said, with Minecraft Pocket Edition being optimized for smartphones, the game mechanics are more limited and fewer in number than their PC or console counterparts. For example, the Pocket Edition doesn’t have Redstone rail systems or minecarts. Sorry, roller coaster enthusiasts!
The multiplayer in Minecraft Pocket Edition, however, is quite impressive considering the format--iOS and Android device users can play on the same servers, except for those playing the full Demo or Lite versions of the game.