App-only marketplace Mercari launches in UK by Ben Donovan in Marketplace 16 Mar 2017 Mercari, Japan’s leading app-only marketplace, launched in the U.K. in recent weeks. The app is also big in the U.S., where it may list in the not-so-distant future. This post is only available to members. Share ebaygumtreeLetgomercariren itoShintaro YamadaShpock Ben Donovan Ben is a writer/analyst in the UK and Ireland. Based in Manchester, UK, he has extensive knowledge in the UK real estate industry having built a 7 year career in a variety of roles in the field.