Radon CRM is an open-source billing and invoicing application that small businesses can use to manage quotes, invoices, clients, and payments.
Why should you choose Radon CRM?
Free-to-use: It is an open-source application which means that company will make ready this software free for you
Fully customizable: customize themes, templates, and features to your needs
Multilanguage interface: the application is translated in many languages by community members
One-click online payments: integration with online payment providers such as Paypal, Stripe or even Bitcoin via Coinbase