Apps similar to Invoice Ninja include Summit Finance, which is free and open source. Other options are Cattr, Midday, Clockify and InvoiceFeed. There's no shortage of Invoicing Software like Invoice Ninja, with more than 100 alternatives for the web, iPhone, Mac, Windows and Android.
ContaGo is a free invoicing app for small businesses and freelancers. Your data stays securely on your phone — no cloud database, no unnecessary data storage, and more privacy. Create and manage invoices easily, with support for Romania’s e-Factura system.
Romania
EU
Create beautiful and professional estimates and invoices in minutes with an inline editor. Simple, efficient, and powerful invoicing software for freelancers and small businesses. Start for free today.
Switzerland
A time, cost and profitability management tool for the financially focused agency CEO and their team.
CzechiaEU
Comprehensive and customizable project management software with real-time collaboration, reusable templates, drag-and-drop editing, workflow automation, and multi-view options, designed for efficient management of projects, invoices, forms, and client communications while replacing multiple apps.
United Kingdom
C invoiCe is a fast, clean, and intuitive invoicing app designed specifically for freelancers and small business owners who need a simple way to send professional invoices—without complicated signups or bloated features.
Invoice Genius is a FREE invoice maker app for freelancers, contractors, and small businesses that allows you to send invoices and estimates, get update notifications, require signature approval, and receive payments quickly and easily online.
United States
Turn time logs into professional invoices in a few clicks. Import from any tracker, create invoices, and email them straight to your clients.
CzechiaEU
Collaborate on projects, track time, manage expenses and invoice your customers. Available in the cloud, from any device!.
Australia
Elorus is the time-tracking, invoicing & project management solution for professionals & agencies. Focus on innovation & reap the fruit of your labor.
GreeceEU
Easy online accounting software used by thousands of freelancers, small businesses, bookkeepers and accountants to manage their books from anywhere.
Easy Invoice creation. By editing the invoice template you can get an invoive in Pdf and/or send it via email. Just edit, just get the invoice. Simple. Your invoices won't be stored on the web. No sign-in required. You can add your logo.
WorkMeter is a SaaS company that automatically measures time and workload. It provides objective metrics on activity, time tracking, absences, application usage, and project costs.
SpainEU
