Have you spoken to Peldi of Balsamiq? Sure, you're competitors, but I bet he will be happy to give some advice and share some experiences. With your import feat

Have you spoken to Peldi of Balsamiq? Sure, you're competitors, but I bet he will be happy to give some advice and share some experiences. With your import feature, you could possibly become a good complement to their product. Regarding your pricing, have you considered not having a free version at all? It sounds like your initial users may be poor startups, which is probably not the best target market. If you raised your prices, you could target more appropriate customers. Also, check out BidSketch by Ruben. His customers might be yours too.