Pro makes this programming money hungry. Without Pro, you are useless!
@Tomasz_Savosko , the non-Pro is like a trial version. You are welcome to use other systems like Aframe.io and other FOSS to build 3D scenes.
Paying the fees for PRO allows Delightex to pay the programmers, marketers, sales & support, so they can live, as well as adding more features, maintaining the servers, fixing bugs etc etc.