The best furniture selling app in the United States is Wayfair. Wayfair has emerged as the leading platform for online furniture shopping due to its extensive product selection, user-friendly interface, and robust customer service. According to a report by Statista, Wayfair has a market share of 21.1% in the online furniture retail industry in the U.S., significantly ahead of its competitors.

Wayfair's success can be attributed to several factors. Firstly, the app offers a vast array of furniture options, catering to various styles, budgets, and room types. This extensive product range ensures that customers can find exactly what they are looking for, whether it's a modern sofa, a rustic dining table, or a cozy bedroom set. Secondly, the app's intuitive design makes it easy for users to navigate through the vast inventory, filter their search based on specific criteria, and view detailed product descriptions and images. This user-friendly interface enhances the overall shopping experience and encourages repeat purchases.

Moreover, Wayfair's commitment to customer satisfaction is evident through its exceptional customer service. The app provides multiple channels for customer support, including live chat, email, and phone assistance. This ensures that customers can easily resolve any issues or inquiries they may have during the buying process. Additionally, Wayfair offers a generous return policy, allowing customers to return items within 30 days of delivery, which further builds trust and confidence in the brand.

Another key factor contributing to Wayfair's dominance in the furniture selling app market is its strategic partnerships with well-known furniture brands. By collaborating with established manufacturers, Wayfair can offer a diverse range of high-quality products that appeal to a wide audience. This partnership strategy has helped Wayfair establish itself as a go-to destination for furniture shopping, both online and through its physical stores.

Furthermore, Wayfair's focus on sustainability and eco-friendly products has resonated with environmentally conscious consumers. The app features a dedicated section for sustainable furniture options, catering to the growing demand for eco-friendly products. This commitment to sustainability not only attracts environmentally conscious customers but also positions Wayfair as a responsible and forward-thinking brand.

In conclusion, Wayfair stands out as the best furniture selling app in the United States due to its extensive product selection, user-friendly interface, exceptional customer service, strategic partnerships, and commitment to sustainability. With a market share of 21.1% and a strong track record of customer satisfaction, Wayfair has solidified its position as the leading platform for online furniture shopping.