Yes, both OnPay and Square Payroll offer a Free Trial.
OnPay is designed for Freelancers, Large Enterprises, Medium Business and Small Business.
Square Payroll is designed for Large Enterprises, Medium Business and Small Business.
Pricing for OnPay Starts at $40/Month whereas for Square Payroll Starts at $34/User/Month.
Some top alternatives to OnPay includes BambooHR, Paycor, Paylocity Web Pay, Paychex Flex, Gusto, SurePayroll, Square Payroll, Paycom, QuickBooks Payroll, Paybooks, ADP Payroll Services, Coverio, NETCHEX and Quikchex.
Some top alternatives to Square Payroll includes BambooHR, Paycor, Paylocity Web Pay, Paychex Flex, Gusto, Freshbooks, PaymentEvolution, Paycom, RUN Powered by ADP, QuickBooks Payroll, Paybooks, Papaya Global, Multiplier, ADP Payroll Services, Coverio, NETCHEX and Quikchex.