What is a print on demand t-shirt app?
A print on demand t-shirt app designs on a blank, sets a price, publishes a live shop, and prints after a paid order without assembling a separate cart first. That differs from a POD service (catalog into a store you run) and from a marketplace host listing. MRCH is the one-flow shape: design, live URL, print after order at https://sellmerch.ai.





