Yes, both Online Check Writer and Supermetrics offer a Free Trial.
Online Check Writer is designed for Medium Business and Small Business.
Supermetrics is designed for Large Enterprises, Medium Business and Small Business.
Pricing for Online Check Writer Starts at $1Pay As You Go whereas for Supermetrics Starts at $69/User/Month when Billed Yearly.
Some top alternatives to Online Check Writer includes CheckWriters, CloudBooks, Checkflo, Checkrun, CPE Cloud, Qualified, Workvivo, ScanWriter, IFTTT, Supermetrics and Drag.
Some top alternatives to Supermetrics includes Searchmetrics, Shortlist Metrics, Mainmetrics, Datorama, Adverity, Power My Analytics, Funnel, Qualified, Analytics Canvas, Workvivo, Metricscreen and OneMetric.io.