Although the Shift app website claims “there is no catch” for the free cleaning, the FAQ notes that booking an appointment requires payment information and warns that clients may be charged if they cancel appointments with less than 24 hours’ notice or are not available to let cleaners in at the appointment time. The Shift app terms of service document also seeks to absolve the platform of responsibility for any property damage, theft, or personal injury that may ensue from the cleaning appointments. The reason behind the promotion So why would a tech startup offer free cleaning? The first-person cleaning data is supposedly valuable enough for the company to “offer cleaning services free of charge for a limited time” by covering the cost of the professional cleaners, according to the Shift app website.…