REstateOne Cost: $12 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions REstateOne: Simplicity in Real Estate is called REstateOne or Real Estate One. All you need for a fast response. All you want to your searched. Features. Mortgage calculator, maximum affordability calculator, Create and keep your listings, and Create and keep your clients including an alarm as reminder. You have the option of using a Window companion TBReports to print and view your listings and clients.