• ① Truke KF is free for teams up to 5 people
• ② Start by installing the evaluation version
• ③ Then get a free license for small teams, and try and test the software
• ④ If you are satisfied and your team is bigger than 5, get in touch with us for a quotation

Licenses remain valid for upgrades of KF 1.x. That means that you can install the latest version and keep working as usual. A major upgrade that would require a new license is not planned in the near future. See the License terms.