If your marketplace requires unique features and a highly customized approach, an application development company (aka. software house) is the better choice, as it can develop a tailored solution specifically designed to meet your needs. While a marketplace development platform offers a quicker and more cost-effective option with built-in features, custom software development services provide the flexibility and expertise necessary for a bespoke marketplace. This makes it a worthwhile investment if your requirements extend beyond what off-the-shelf platforms can offer.