This article, like most about pricing, misses the cardinal rule: price what the market will bear. But they actually ended up in roughly the right place: free f

This article, like most about pricing, misses the cardinal rule: price what the market will bear. But they actually ended up in roughly the right place: free for unfunded services, a healthy monthly for lightly funded and a large monthly for well-funded. They also get right that all substantive features should be offered in the free/lower-priced tiers. The trick is to put "enterprise-y" features in the more expensive tiers. Best example is multi-user logins. This is not a core feature of the product but is a good proxy for a customer who has ability and desire to pay more.