What is the difference between the pre-developed checkout and the custom form checkout?

A checkout enables you to collect payment and calculate tax before payment easily on your website. You have the choice between a pre-developed checkout and a custom form checkout. Pre developed checkout: this checkout is very fast to integrate. You only need to copy and paste the code, and you're ready to collect payments. Custom form checkout: this checkout gives you more flexibility in terms of design and allows you to add/modify requested informations from your customers at the payment. This checkout requires more development skills and is embedded. If you do not really know which is the best option for you feel free to ask us and we will guide you as best we can.