Invoice is an example of a free app that offers mobile functionality for invoicing on the go. However, if you integrate payments using a payment gateway or payment processor, you will have to pay processing fees for each transaction completed. Invoice is a free billing and invoicing software for small businesses that have fewer than five clients to invoice. Invoice effectively manages and monitors your invoices while you relax. This tool is perfect for time tracking, expense tracking, invoice tracking, sending reminders, and most importantly, allows customers to pay through credit card or debit cards and bank transfers - restaurant management software . At the end of the day, the goal is to find a payment processing solution that facilitates payments without hurting your bottom line. A well-designed template in invoicing software can achieve both, saving you time compared to manually designing invoices in programs. Additionally, these invoice templates can be easily duplic...