Songkick – which allows users to follow music artists, their live music events and has links to book tickets – is today launching a new iPhone app geared far more towards actually selling concert tickets than simply listing upcoming concerts from bands you follow. They have also refreshed the design, and done a deeper integration with Spotify to scan users' favourite artists. What has been patently clear for some time is that the mobile ticketing experience is broken. While Songkick could easily list the events, when a user tried to actually buy tickets they'd often be pushed to non-mobile sites from ticketing sites which would put them off buying. Indeed, this has reflected in the data. Today Songkick releases information to the effect that although well over 50% of Songkick's traffic is on the mobile app, under 10% of users buy tickets on the mobile. So deep ticketing integration should see those numbers rise significantly, and with it, Songkick's revenues from partner ticketing sites. While you can't store a credit card number, a la Uber, that is slated for January. It has 8.5 million users a month now, which - Songkick claims - makes it the biggest independent concert service in the world. They have had some new competition from U.S. ticketing companies like the LiveNation mobile app which has some features of Songkick. However, most of these are ticket vendors, but co-founder and CEO Ian Hogarth says they are more a "universal discovery engine for concerts. We see it as a one stop shop." Last year the company raised a $10 million B round of financing from Sequoia Capital, at the time Sequoia’s first ever investment in a U.K.-headquartered startup. The round took Songkick’s total funding to date to around the $17 million mark. Previous backers include Y Combinator, SoftTech, The Accelerator Group and Index Ventures. Songkick is the second largest concert site in the UK after Ticketmaster but as Ticketmaster is partner it doesn't compete. It also has distribution partnerships with Yahoo, YouTube, Foursquare, Spotify, Vevo, MTV and Soundcloud, among others. Founded in an attic in 2007 by Ian Hogarth, Michelle You and Pete Smith as an early Y Combinator company, Songkick was one of the original anchor startups in London’s ‘Silicon Roundabout’ area, in the East of the city, which is now being promoted externally as “Tech City” by the U.K. government.