Yes, both Polish and Changefeed offer a Free Trial.
Polish is designed for Individuals, Medium Business and Small Business.
Changefeed is designed for Large Enterprises, Medium Business and Small Business.
The starting price of Changefeed begins at $49/Month, while pricing details for Polish are unavailable.
Some top alternatives to Polish includes FeatureShift, MockVisual, Localizely, Qualified, AnalyticsVerse, Workvivo, Varnish Software, Stepsize, Brunch, iterspace, ReleaseNotes and Releasebox.io.
Some top alternatives to Changefeed includes Headway APP, Qualified, Changelogfy, ChangeHub, Workvivo, ChangeCrab, Changeloggy, ReleaseNotes, ChangeKeep, Releasebox.io and IFTTT.