Yes, both Lucidchart and Floorplanner offer a Free Trial.
Lucidchart is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Floorplanner is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Lucidchart Starts at $0 whereas for Floorplanner Starts at $4.08/Month when Billed Yearly.
Some top alternatives to Lucidchart includes Miro, FigJam, SmartDraw, Gliffy, Microsoft Visio, Creately, EDraw Max, DrawSQL, Quick Diagram, diagrams.net, Lucidscale and HackerDraw.
Some top alternatives to Floorplanner includes Planner 5D, Homestyler, HomeByMe, RoomSketcher, Roomstyler, Sweet Home 3D, Live Home 3D, Cedreo, Space Designer 3D, NextGen Healthcare EHR, NextGen Enterprise and NextGen Office.