Kestrel allows and encourages developers to customize and extend functionality without exposing private data. Apps can be freely forked, tweaked, and repurposed.

By utilizing pay-as-you-go pricing mechanisms, developers can deploy arbitrarily complex or data-intensive applications by letting their users pay reasonably for their own usage, and users never have to worry about their favorite services being discontinued.

By defining reasonable premiums on top of base-layer service costs, application developers and contributors can be fairly compensated based on the usage and popularity of their app.