OwnInvoice by Grit Software – Desktop invoicing with a one-time purchase

Summary: OwnInvoice is a desktop invoicing app for Mac and Windows that requires a one-time $199 purchase instead of ongoing subscriptions. It offers professional invoicing, quote management, five payment gateway integrations, and offline functionality, keeping data local to the user’s computer.

What it does

OwnInvoice provides invoicing and quote management with integrations for Stripe, PayPal, Square, GoCardless, and Authorize.Net. It operates fully offline as a desktop app built with Electron, React, and SQLite.

Who it's for

It is designed for freelancers and small businesses seeking to own their invoicing software without recurring fees.

Why it matters

OwnInvoice eliminates subscription costs by offering a one-time purchase and ensures user data remains on their device rather than in the cloud.