Yes, both W3Dart and Ubertesters offer a Free Trial.
W3Dart is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Ubertesters is designed for Large Enterprises, Medium Business and Small Business.
Pricing details for both W3Dart and Ubertesters are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to W3Dart includes Ubertesters, Instabug, Airbrake, Sentry, Bugsnag, Usersnap, Bugfender, Rollbar, Honeycomb and Userback.
Some top alternatives to Ubertesters includes TestRail, ReQtest, Bug-Track.com, Disbug, CloudQA, Kualitee, QuAck, UnbugQA, Crash Catch and TestUnity.