Square Invoices offers Free Trial, but PayApp does not.
PayApp is designed for Large Enterprises, Medium Business and Small Business.
Square Invoices is designed for Medium Business and Small Business.
Pricing details for both PayApp and Square Invoices are unavailable at this time. Contact the respective providers for more information.
Some top alternatives to PayApp includes Stripe Payments, WePay, QuickBooks Payments, Square Invoices, PayorCRM, PaySimple, SuperPay, SwipeSimple, PayNet and Payment Record Online.
Some top alternatives to Square Invoices includes SlickPie, Invoiced, InvoiceBerry, PayorCRM, Moon Invoice, Simple Invoices, Billbooks, Billin, InvoiceApp and Billogram.