Ticketmaster has pushed out the latest update to its iPhone app, while revealing some new figures on its mobile business. The company says that in the first three months of 2014, 16% of its sales happened on mobile devices, but that it expects the new app update to boost that percentage. “Each step we can eliminate historically leads to 10% more transactions,” VP of mobile products Mike Lane told Mashable. The latest eliminated step is CAPTCHA, the ‘type in these letters and numbers’ security measure designed to ensure that it’s a human buying tickets, not a bot. That’s been replaced by push notifications, with the aim of speeding up the ticket-buying process. The app also ties into Ticketmaster’s secondary ticketing business, enabling fans to list and sell unwanted tickets.