Charges are completely different
Worldpay’s pricing on their website is not very clear or transparent. You have to provide some information about your card turnover, business etc. to get an exact quote from a Worldpay sales rep.
The only exception is Worldpay Reader, which can be purchased upfront on a pay-as-you-go plan or used on an 18-month contract for a monthly fee. But even in this case, certain fees are not specified until you sign up.
None of the other terminals by Worldpay are purchased upfront. Instead, you rent a card machine (whether Mobile, Portable or Countertop) on a plan that suits your card sales volume and business requirements. There are four types of plans for card machines – Simplicity, Fixed Monthly, Custom and Pay As You Go – all with different costs.
iZettle’s approach to pricing is complete different. All fees are listed on their website without having to speak to a sales rep, and the card rate is the same for all businesses, card brands and sales volume. It’s only if you sell for more than £10k monthly that you can negotiate a custom rate.