We had free version when translation in Google and Microsoft was free. After they made it paid we stopped supporting free version since paid services needs optimization which we have in paid version.

Please note that vBET requires your server to have access to external translation providers (Microsoft and/or Google and/or Apertium). All translations are made by HTTP so your security configuration must simply allow for outgoing HTTP requests

vBET license is per installation. If you need to install it on different forums then you need different licenses. One per each forum you are running. If you have testing environment which is not accessible for outsiders then after informing us you can install vBET on your testing environment. Of course you need to have license first.