Yes, both Perkness and 15Five offer a Free Trial.
Perkness is designed for Large Enterprises, Medium Business and Small Business.
15Five is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Pricing for Perkness Starts at $2.99/User/Month whereas for 15Five Starts at $7/User/Month.
Some top alternatives to Perkness includes 15Five, Synergita, Engagement Multiplier, Performly, Talmetrix, WeSpire, Wrkit, EngageRocket, Employee Success Platform, Camaradly, Let's Buzzz and Leapsome.
Some top alternatives to 15Five includes Lattice, Impraise, Synergita, Betterworks, Performance Culture, PerformanceHub, 10xPerformance, Culture Amp, Performly, Employee Success Platform, Leapsome and EmpowerPoints.