InvoicePlane vs Kolleno

InvoicePlane is a free, self-hosted open source application for managing quotes, invoices, clients, and payments. It supports a billing workflow from quotes through invoices to payment, with invoice tracking, recurring invoices, and a customer payment portal. Client records can hold contact details, notes, and custom fields; basic project and task management is also available. Users can select themes, set amount formats, and modify email and PDF templates. Starting with version 1.6.2, the application supports creating eInvoices that can comply with European Union standards. The feature description lists PayPal and Stripe as online payment providers, while the version 1.6 wiki identifies Stripe as the only provider supported by default. InvoicePlane runs on web-server or shared hosting. Listed requirements include MySQL 5.5 or later or equivalent MariaDB, Apache 2.4 or later or Nginx 1.20 or later, and PHP 8.0 through 8.1. The homepage lists version 1.7.2 for server download. Support is community-provided through the forum and Discord; the project says it offers no paid help, service-level agreement, or 24/7 support.

Kolleno is an order-to-cash platform for organizations managing accounts receivable. It brings collections, payments, cash application, disputes, credit risk management, and cash flow forecasting into a cloud-based workspace. The platform gathers invoice data, customer communications, and payment history, then automates reminders, follow-ups, and escalations. Customizable AI agents can handle those tasks, match payments, and post them; teams can review, change, or override the agents’ actions. Kolleno also analyzes customer payment behavior and displays predicted payment dates. It offers over 1,000 integrations across ERP, CRM, banks, and mailboxes, plus an open API. Named integrations include Xero, QuickBooks, Sage Intacct, Clio, NetSuite, Microsoft Dynamics Business Central, SAP, Oracle, and Fusion. Access is through a computer and internet connection, without installing apps. There is no free plan, but a free trial is available. Business Pay costs $650 a month per user, and Business Plus costs $1,245 a month per user; Enterprise plans have no listed price.