Yes, both Flowlu and Square Invoices offer a Free Trial.
Flowlu is designed for Large Enterprises, Medium Business and Small Business.
Square Invoices is designed for Medium Business and Small Business.
The starting price of Flowlu begins at $29/Month when Billed Yearly, while pricing details for Square Invoices are unavailable.
Some top alternatives to Flowlu includes Quickbase , Smartsheet, ClickUp, Zoho Projects, Wrike, TeamGantt, Teamwork, ProjectManager.com, Microsoft Project, TaskBranch, Quick Base, Project.co, Height, Ravetree, Project Insight and SmartTask.
Some top alternatives to Square Invoices includes SlickPie, Invoiced, InvoiceBerry, PayorCRM, Moon Invoice, Simple Invoices, Billbooks, Billin, InvoiceApp and Billogram.