Supposedly it is still easier to convert a free model into a paid one than vice versa. People hate seeing something they place real value on be given away to ot

Supposedly it is still easier to convert a free model into a paid one than vice versa. People hate seeing something they place real value on be given away to others. I would suggest keeping the core of what you have now free, and reserving some of the bells and whistles for paid accounts. Then to lure the free users (who are not completely disgruntled at this point) over to the paid side, add a great new feature or two.