Yes, both Crystal Ball and Power My Analytics offer a Free Trial.
Crystal Ball is designed for Large Enterprises, Medium Business and Small Business.
Power My Analytics is designed for and undefined.
Pricing for Crystal Ball Starts at $6/Month when Billed Yearly whereas for Power My Analytics Starts at $24.96/Month when Billed Yearly.
Some top alternatives to Crystal Ball includes Google Analytics, GoAnalyze, UseItBetter, Power My Analytics, Sweet Analytics, Analytics Canvas, GAannotations, Slymetrix Analytics, Blogalyzer and TurboAnchor.
Some top alternatives to Power My Analytics includes Porter Metrics, Funnel, Megalytic, ETLrobot, Admetrics Data Studio, Analytics Canvas, Albato, Supermetrics and Halo.