Yes, both Adobe XD and Axure RP offer a Free Trial.
Adobe XD is designed for Individuals, Large Enterprises, Medium Business and Small Business.
Axure RP is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Adobe XD Starts at $9.99/Month whereas for Axure RP Starts at $25/User/Month when Billed Yearly.
Some top alternatives to Adobe XD includes Figma, FigJam, InVision, UXPin, UX-App, Justinmind, UserX, MockupTiger, Sketch and FlowMapp.
Some top alternatives to Axure RP includes Miro, Adobe XD, HotGloo, Pidoco, NinjaMock, Balsamiq, Wireframe.cc, Claritee, Stage and Zen Wireframe.