Yes, both Swell and ReviewGain offer a Free Trial.
Swell is designed for Large Enterprises, Medium Business and Small Business.
ReviewGain is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Swell Starts at $199/Month when Billed Yearly whereas for ReviewGain Starts at $49/Month.
Some top alternatives to Swell includes Customer Alliance, ReviewBuzz, Reputation.com, Critique, Guestmeter, Rize Reviews, Reptrics, Reputation Studio, ReviewRev and ReviewGain.
Some top alternatives to ReviewGain includes ReviewBuzz, ReviewInc, Reputation Desk, Reputation.com, Trustpilot, Critique, Guestmeter, Reputation Studio, ReviewRev and Grab Your Reviews.