For cloud developers billing for application runtime is of course an important question. Generally on Pivotal Cloud Foundry you have to pay for application runtime i.e. reserved disk quota multiplied by time. It is important to note that a crashed application like in the following example while not being useful still consumes disk quota:
Here in the Pivotal Web Services window we see a “1” next to the red dot in the APPS section. This represents a crashed application, while the green dot would represent a running and the grey dot a stopped application. Everything which is not grey costs you money!
In that particular case not very much though: 0.88$ or around 0.03$/(GB * HOUR).