Yes, both Webapp.io and Online Check Writer offer a Free Trial.
Webapp.io is designed for Large Enterprises, Medium Business and Small Business.
Online Check Writer is designed for Medium Business and Small Business.
Pricing for Webapp.io Starts at $39/User/Month when Billed Yearly whereas for Online Check Writer Starts at $1Pay As You Go.
Some top alternatives to Webapp.io includes WowSoftware, Experience Layer, webtoapp.design, Qualified, Workvivo, iterspace, Polish, IO Technologies, IFTTT, Online Check Writer and Drag.
Some top alternatives to Online Check Writer includes CheckWriters, CloudBooks, Checkflo, Checkrun, CPE Cloud, Qualified, Workvivo, ScanWriter, IFTTT, Supermetrics and Drag.