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What is Mr. Biller?

The convenience of issuing invoices has been significantly enhanced by Mr. Biller, an emerging start-up in Australia that provides complimentary online invoicing services. Our journey began in 2012, motivated by the necessity for a simple and budget-friendly method for businesses to efficiently create multiple invoices, a challenge we personally encountered. Since that pivotal moment, our committed team has worked diligently to transform Mr. Biller into the most user-friendly invoicing solution specifically designed for small enterprises. We are confident that we have achieved this goal—why not explore it for yourself? Your invoices will prominently feature your branding, not ours, ensuring you retain full ownership and control. Our streamlined invoicing system offers valuable insights into your clients, simplifying the billing procedure and speeding up payment collection. Gone are the days of cumbersome email communications; now you can effortlessly send invoices directly through Mr. Biller. Furthermore, our newly updated dashboard presents a detailed overview of your business's growth and performance metrics in an accessible layout, making it simpler than ever to monitor your achievements. With Mr. Biller, the invoicing process integrates smoothly into the management of your business, allowing you to focus on what matters most. Enjoy the freedom of a hassle-free invoicing experience that empowers your entrepreneurial journey.

What is Invora?

Invora is a self-hosted invoicing system for freelancers, agencies, trades and small businesses, sold as a one-time purchase with full source code rather than a monthly subscription. It handles estimates, invoices, branded PDFs, part-payments, receivables ageing, recurring billing that cannot double-draft the same cycle, clients with CSV import, tax rates and a reusable item catalogue. Outbound features run on your own credentials and ship switched off: emailed invoices and reminders through your SMTP server with a send log, and an .ics feed of due dates. Beyond the invoicing itself it includes a REST API with revocable keys, webhooks, an MCP endpoint for AI assistants, two-factor authentication, OIDC single sign-on, scheduled backups, an audit log and GDPR anonymisation. It runs on plain PHP 8 with MySQL or SQLite on ordinary shared hosting, needs no framework or build step, and never phones home.

Media

Media

Integrations Supported

Integrations Supported

ChatGPT
Claude
n8n

API Availability

API Availability

Has API

Pricing Information

$3 per month
Free Version
Free Trial Offered?

Pricing Information

$99 one-time
One-time purchase. Single licence $99 - one domain you own or operate, client work included. Extended licence $229 - as many domains as you own or operate, plus one installation handed over per client project. Full source code included. No subscriptions, no per-user fees, no cut of what you bill.

Supported Platforms

SaaS

Supported Platforms

Windows
Mac
On-Prem
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training

Training Options

Documentation Hub

Company Facts

Organization Name

MrBiller.com

Date Founded

2012

Company Location

Australia

Company Website

mrbiller.com

Company Facts

Organization Name

Ownware

Date Founded

2026

Company Location

Slovakia

Company Website

ownware.io/p/invora

Categories and Features

Billing and Invoicing

Billing Portal
Contact Database
Customer Portal
Customizable Invoices
Hourly Billing
Invoice History
Multi-Currency
Online Invoicing
Online Payments
Payment Processing
Recurring/Subscription Billing
Service Ticket Billing
Tax Calculator

Categories and Features

Billing and Invoicing

Contact Database
Customizable Invoices
Invoice History
Multi-Currency
Online Invoicing
Recurring/Subscription Billing
Tax Calculator

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