Is Envoyce open source?
The core of Envoyce is completely free to use. It supports invoicing, customers, products as well as quotations. You can use it to send your customer invoices via email, Whatsapp or print them and send the old fashioned way.
Envoyce is not open source, but there is no subscription charge and the only potential limit to use is a "fair use" policy, which is a very common continuity measure that is designed to keep the service running for everyone.
To help keep the "lights on" we will be creating "add-on" packages that enhance & extend the Envoyce platform. We have "Time & Expenses", "HMRC VAT submissions" and "Cashbook" currently in production, with more to follow.