Contact

Corrections are the most useful thing you can send. If a figure here does not match what the vendor publishes today, tell us and we will re-check and re-date the entry.

Replies come within two business days.

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This is the only form on the site

It goes to the editor. It is not a quote request and no vendor receives it.

If you do not hear back

Please send the message again. The form is hosted by a third party and can occasionally fail silently.

Adding a vendor

We add vendors that publish a per-user price, and we list ones that do not, marked as such. Send a link to the pricing page. We do not accept payment for inclusion or position — see Method.

Before you write

The calculator may already answer a pricing question, and the vendor list shows who publishes nothing.