Yes, both Gliffy and UXPressia offer a Free Trial.
Gliffy is designed for Large Enterprises, Medium Business and Small Business.
UXPressia is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Gliffy Starts at $8/Month when Billed Yearly whereas for UXPressia Starts at $20/User/Month when Billed Yearly.
Some top alternatives to Gliffy includes Miro, FigJam, SmartDraw, Cacoo, Microsoft Visio, DrakonHub, Creately, Lucidchart, EDraw Max, DrawSQL, Quick Diagram and diagrams.net.
Some top alternatives to UXPressia includes Figma, FigJam, Adobe XD, UXCam, UserX, UserZoom, Optimal Workshop, UX Metrics, Moyo App, FlowMapp, Adobe Experience Platform and The Experience Manager.