A sizeable share of the online public live alone, especially in Germany, yet also in the US, UK, and Japan. This research finding has implications for technology marketers, since our TUP data also shows that one-person households behave differently than those with many people, especially with children. Solo households buy technology products less often, have fewer products and services, and have different needs. Report [TUP_doc_2023_1107_alon] in TUP Lenses: User Profile; Households