I use 2 computers (one in rv) do I need to pay for 2 subscriptions or purchases?

To expand on the answer you can use Quicken on 2 computers BUT you have to designate (or remember) which has the active QDF (Quicken Data File).  For example, you have Quicken on you computer at home and you are going to go on an trip in the RV.  Just copy the QDF file to a flash drive and then copy to the computer on the RV.  Remember when you do this the active file is no longer on the home computer but on the RV computer.  When you return just reverse the process.