Thanks for your thoughts. Looking back my pricing order and strategy does seem a bit awkward. I've changed it so that FREE comes first with the most popular or value-for-money goes in the middle.
I forgot to mention that I have little coding experience and plan to either outsource or look for a technical cofounder for my startup. So that's about as far as I can stretch to when editing my site.
I do want to start out as a free app but have only kept pricing info to test the click through rate.