I'm unsure if you want them to view a schedule or create? Being able to create without a license or subscription would be a bit of an overreach but if you created them in the Model this is accessible.
If you load the full Revit model you can review Schedules in the Autodesk Viewer.

Alternatively you can install Revit when the Trial has expired you could use the Revit Viewer (defaults to a viewer without a license)

Navisworks Freedom could be another option but extracting Material Schedules is a little beyond simple Viewing capabilities unfortunately.
Maybe it could be a post for the Ideas Communities Forum
Jay Colcombe
Autodesk Certified Instructor
Revit Architecture & Structure Certified Professional
AutoCAD Certified Professional
B.Sc. Hons Civil & Structural Engineering
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