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What is Link4?

Every business receives invoices, and Link4 simplifies this task through automation, particularly benefiting small enterprises. By integrating with your cloud accounting system, you can exchange invoices instantly in real-time—bypassing traditional methods like email, scanning, and PDFs. This innovative approach streamlines the invoicing process, making it quicker, more efficient, and significantly reducing the likelihood of errors. Additionally, it removes the necessity for physical document storage, potentially enhancing cash flow for businesses. You can start using the service at no cost, and it's a cloud-based solution that requires no installation or downloads. This ease of access allows businesses to focus more on their operations rather than administrative tasks.

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

FreeAgent
FreshBooks
MYOB
MYOB AccountRight
MoneyWorks
NetSuite
QuickBooks Online
Reckon One
SAP Business One
Saasu
Sage 100
Simpro
Workday Extend
Xero
Zoho Books

Integrations Supported

ChatGPT
Claude
n8n

API Availability

API Availability

Has API

Pricing Information

$0
Plans are based on usage. Try it for free and if you see the benefits grow into larger plans.
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
Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Webinars
Online Training

Training Options

Documentation Hub

Company Facts

Organization Name

Link4

Date Founded

2016

Company Location

Australia

Company Website

link4.com.au

Company Facts

Organization Name

Ownware

Date Founded

2026

Company Location

Slovakia

Company Website

ownware.io/p/invora

Categories and Features

Accounts Payable

Approval Process Control
Duplicate Payment Alert
General Ledger Entry
Vendor Management

Accounts Receivable

Billing & Invoicing
Collections Management
Online Payment Processing

Billing and Invoicing

Billing Portal
Contact Database
Dunning Management
Invoice History
Online Invoicing
Online Payments
Payment Processing
Recurring/Subscription Billing
Tax Calculator

E-Invoicing

Not specified

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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