Listing is free. A submitted tool is checked against its own website and published if it fits the directory, which means it is useful to a one-person company, shows its pricing publicly and names who makes it.
The entry is verified against the tool's own website. If it fits the directory, it is published within a few days. The sender gets one email at the address given, with the result. Once the tool is listed, it can be featured through the payment link.