Starting August 11, Uber will offer free ice cream to users in select cities. Open the Uber app and request ice cream; if you get a match, you can reserve a soft serve cone for yourself and up to four friends. In addition to the ice cream, you'll also receive a free collectible Uber cone, which you can take to a participating McDonald's for a refill every Friday through September 22. Click here for more information, including a list of eligible cities.