It's at the bottom of the page. A pod with 1GB of RAM, 1 CPU core and 10GB of storage costs $2.65 per month. Bandwidth is not mentioned but I don't think it should be a problem with most of apps except for like blogs.
No bandwidth limit or other charges. Just pay for allocated CPUs, memory and storage. Or stop the pod if it's not in use and pay for storage only ($1 minimum/month)
