White-labelling is something we offer on request for a charge of USD$80 per month for regular accounts. If you have an Enterprise account please contact us.
Our 'powered by elev.io' is a small unobtrusive link that allows us to keep prices down by giving us a small way to get word of mouth out there to the users of our users, who see the product and like what we do.
It drives a small but necessary amount of traffic our way to help us bring on new customers so we can continue to make this product the best it can be for you. Less marketing spend means we can keep our pricing low.
We've done our best to keep it as small and out of the way as possible while still being visible to those who want to find it.