This is a continuation of Manta App, I'm taking care about the maintenance and new features as I need it.
Cost / License
- Free
- Open Source
Application types
Alerts
- Discontinued
Platforms
- Mac
- Windows
- Linux

Invoice Ninja is described as 'Free, open-source solution for invoicing and billing customers. With Invoice Ninja, you can easily build and send beautiful invoices from any device that has access to the web' and is a Time Tracking tool in the business & commerce category. There are more than 100 alternatives to Invoice Ninja for a variety of platforms, including Web-based, iPhone, Mac, Windows and Android apps. The best Invoice Ninja alternative is Midday, which is both free and Open Source. Other great apps like Invoice Ninja are Summit Finance, Cattr, Clockify and InvoicePlane.
This is a continuation of Manta App, I'm taking care about the maintenance and new features as I need it.

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