Spirit System

I am wanting to be able to program my spirit on my spectrum IX12 and or iPad / android tablet .
I am wondering which way / product is the better choice .
Spirit WiFi or Bluetooth module ?
Bluetooth description says it will replace the WiFi link in future updates, WiFi link says it works on most devices and has the app integrated, which seems better to me . But not if the Bluetooth module will supersede it .
If someone could let me know which is the smarter way to go I would appreciate it .
Thanks !

I ended up ordering the WIFI link as it seems to have many more features.

If using iPad or iPhone it is definitively better to use Wifi-Link. You can use it with all devices.