There is a wi-fi module which is part of Lionel's Layout Control System ("LCS") from which you can operate switches via an iPad. However, the wi-fi module requires a Legacy Cab-2 or a Cab1L command base in order to do that, so you're basically back to square one.
There is also a Bluetooth app, but AFAIK, it only operates engine functions, i.e., speed, direction, horn, whistle, voice, sound, couplers, etc. and does not operate switches.
If you're looking to operate the Fastrack switches wirelessly via a tablet, your might try and purchase a used Cab1L base (with or w/o the remote - your option) and an LCS wi-fi module. OTOH, if you were to get a full Legacy command set, you can program in a "route" where switching functions are already pre-programmed into the system, so no manual switching via the remote or tablet is required. In addition, you can always add the wi-fi module to the Legacy system to operate via an iPad.
