Neither Plain nor Catalyst offers a free trial.
Plain is designed for Large Enterprises, Medium Business and Small Business.
Catalyst is designed for Large Enterprises and Medium Business.
The starting price of Plain begins at $59/Month, while pricing details for Catalyst are unavailable.
Some top alternatives to Plain includes TeamSupport, Supportbench, ClientSuccess, Custify, UserIQ, Planhat, Catalyst, Aligned, Freshdesk Customer Success (Formely Freshsuccess) and Really Simple Support.
Some top alternatives to Catalyst includes and undefined.