Neither Trimble Connect nor Tekla PowerFab offers a free trial.
Trimble Connect is designed for and undefined.
Tekla PowerFab is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Trimble Connect begins at $8.33/User/Month when Billed Yearly, while pricing details for Tekla PowerFab are unavailable.
Some top alternatives to Trimble Connect includes Procore, Autodesk BIM 360, YouBIM, BIMx, BIM Track, Navisworks, ALLPLAN, Revit LT and bimU.io.
Some top alternatives to Tekla PowerFab includes e-Builder Enterprise, YouBIM, BIM Track, Tekla Structures, Revit LT, Tekla Structural Designer, MasterSeries and BUILDFitters.