Queenly is a San Francisco-based company that operates a marketplace and search engine for buying and selling formalwear, with the goal of making it more accessible to everyday people. The company has rolled out new social commerce features that allow users to discuss fashion tips, share recommendations, and develop a community of like-minded friends. Queenly chose MongoDB as its database solution due to its ease of use, scalability, and flexibility, particularly in full text search indexing, which enables a personalized shopping experience tailored to different life events. The company's founders leveraged their knowledge of the fashion industry and data-driven methods to create differentiation in a crowded space, using MongoDB's compound filtering and indexing capabilities to quickly launch new features such as communities on Queenly and Tiktok-style video feeds. Additionally, Queenly is part of the MongoDB for Startups program, which provides free MongoDB Atlas credits, one-on-one technical advice, co-marketing opportunities, and access to a partner network, offering specialized support to small business owners like Zhou.