Thumzap is asimple way to split a check on any mobile or online order, or for a third party to pay for someone else's purchases. Thumzap lets users send requests to pay for their in-app purchases. Once the request is received, it can be paid with no need to set up a digital wallet or entercredit card information. Thumzap plugs into the payer's existing payment method in the Google Play or Apple app store.