although the partnership ended due to Century 21 filing for Chapter 11 bankruptcy on September 10, 2020. Features Boxed customers can shop on desktop, via the Boxed iOS app or Android app. In August 2017, Boxed launched SMART Stock up, a feature that applies machine learning on customer data to predict when they will most likely run low on a particular product. It sends a reminder to customers when they log in, making it easy and convenient to re-purchase what they need. In tandem with SMART Stock up, Boxed launched Concierge, an autonomous shopping concept that uses the same machine learning to not only predict when a user is running low, but pre-emptively fulfill and send a customer's product to them without them needing to engage at all. It is currently available only to B2B customers. Prince & Spring In June 2015, Boxed launched their premium private brand Prince & Spring, focusing on high quality products and design. The collection includes toilet paper, paper towels, trash bags, paper plates, party cups, cutlery, batteries and hand soap, as well as groceries including organic, fair trade coffee, organic coconut oil, olive oil, nuts and trail mixes. Prince & Spring has won three design awards at the Vertex Awards. The brand is sold exclusively through Boxed. Boxed Hotels In June 2017, Boxed launched Boxed Hotels, an online hotel booking service available only to Boxed customers that enables them to save up to 45% on thousands of hotels around the world. Corporate social responsibility In October 2016, Boxed launched its Rethink Pink campaign to end the upcharge on women's hygiene products, known as the Pink Tax. Boxed reduced the per unit price to match the male equivalent on items such as razors, deodorant, and body wash, paying the margin. Boxed also reduced the state sales tax on tampons and pads in the 36 states that charge sales tax on these feminine hygiene products. A number of prominent politicians and media outlets have supported Boxed's Rethink Pink initiative, including New York Senator Chuck Schumer, CNN, Fox News, CBS News, and Entrepreneur. For Giving Tuesday 2016, Boxed partnered with Unilever to donate women's body care essentials to shelters around the country - the number one most requested item at women's shelters. Company benefits In May 2015, Huang announced he would personally pay the college tuition of every full-time fulfillment center employees’ children. In May 2016, the