If you have connected to Spades Royale via Facebook, your stats and progress will be saved.

If you wish to play on a new or different device, all you need to do is login again with your Facebook account and all data will be recovered.  You will be able to continue from the point last played. If you choose to play as a guest and do not connect with Facebook, the stats will be saved but only locally (on the specific device you played from), meaning your data will not be transferable to a new device.