Thanks! Currently it is free to use. More advanced features are being developed and some features will be available to paid customers only. With that said, my idea is to make it a non-SaaS product so that people can buy a perpetual license and use it whenever they want. In future, it largely depends on what kind of tool it will become. I imagine that it could become either a data exploration tool or a data knowledge sharing tool, and different business models may fit in.