Sorry if I am missing anything here but I don't understand that after all these years why have you made it Free?
It is difficult to understand if one looks through the technological view or think from his/her head.
It happened to me too.
But if we look from our heart and we see a 'creator' wanting his/her 'creation' to reach the sky, then we get the answer.
I too have developed many small tools (not to compare with Erel's creation) and all are free (see my signature).
This was the only thought in my mind in making them free.
Obviously we have this fear that 'how will Erel support himself and family ?'
I think all will be clear once we know the details of the 'investor'
Regards,
Anand