PayPal does a number of things (stored value system, aggregation, virtual terminal, etc). I'm not sure how Noca is a competitor at all. Also, this page has a number of inaccuracies. For example, chargebacks don't exist for checks, Authorize.net as a standalone doesn't enable payments at all (it is a gateway, you also need a merchant account, which you could get cheaper than at Noca), etc. It does NOT take months to sign up with Authorize.net, you can get setup in an hour.<p>Noca is relevant if it is somehow 3.49% for all transactions though... It would make it a cheap option for transactions <$10 or so.