Invoice Simple vs InvoiceNinja

Invoice Simple is a user-friendly invoicing app tailored for freelancers, contractors, and small businesses who need to create professional invoices quickly. Its clean interface allows users to design invoices, estimates, and receipts within minutes, even without technical knowledge.

Invoices can be customized with logos, colors, and itemized details, then sent via email or shared as PDF files. Invoice Simple also supports payment tracking, recurring invoices, and online payment options, helping users get paid faster.

Its mobile-first approach makes it ideal for businesses that operate on the go, such as service providers, consultants, and tradespeople.

Invoice Ninja is a feature-rich invoicing and billing platform built for freelancers, agencies, and small businesses. It offers a flexible way to create, send, and manage professional invoices while also supporting recurring billing, time tracking, and expense management.

Users can easily customize invoices with branding, accept online payments, and automate reminders for overdue bills. Invoice Ninja is available in both free and paid versions, with the free plan allowing up to 100 clients and unlimited invoices.

For businesses seeking more, the paid versions offer advanced automation, custom domains, and integrations with over 40 payment gateways.