It might be common knowledge to developers, but some readers might not be aware that Apple only permits developers to sell apps at certain price points. For example, customers in the US App Store will see apps costing $0.99, $1.99, and $2.99 but they won't find any apps costing $5.20 or $2.75.
For various reasons, which we'll cover, Apple permits developers to choose from 94 price tiers, which range from US$0.99 to US$999.99. Developers pick one price tier, which applies to every country that their app is distributed in.
In this story we'll go into the details of the App Store price tiers, explaining how they work, some of the reasons why they exist, interesting consequences of them, and hear from developers who use them.
This is a bit of an experimental story, exploring an iOS/Mac developer topic for the benefit of anyone interested in the iOS/Mac app ecosystem. If enough people find this useful we'll look at covering other topics.