We believe best software in the world is free. Facebook, Whatsapp, Twitter - are all best quality products, free for the user. So free does not mean cheap and free definitely does work.
Currently we generate revenue by providing on-premise deployment for a select group of customers. We are also looking at white-labeling as one of the revenue sources.
But you can rest assured that using this software online is completely free, with no limits at all on the number of users, data volume or usage. You can invite any number of people (not restricted to your own team, but even outside of it) or upload as many files.
It's truly 100% free.