Harfang costs nothing as long as you do not have a final product to market. We estimate that you should not have to pay anything to study, learn or write open- source software using our framework.
The day you start distributing a commercial product using Harfang you simply need to to contact us:
We will then get back to you on a yearly basis to identify potential revenue on which you should pay royalties according to the following conditions.
You are an individual or a company with a yearly global gross revenue of less than 1.000.000€.
We ask for 3% royalties for each year during which your product gross revenue exceeds 30.000€.
OR
You are a company with a yearly global gross revenue of 1.000.000€ or more.
We ask for 3% royalties of your product gross revenue.