Three’s a crowd when it comes to apps designed to help, well, crowds shoot and synchronise videos at gigs. We’ve covered Vyclone regularly, most recently when it was used for an Ed Sheeran live promotion. Then, earlier this month we reported on the launch of Edge Music’s iPhone app. Now there’s a third: CrowdPulse. Launched by Crowdsurf Ventures, it “allows users to upload videos together at any event, and tag their videos in an easy to explore network of their favorite bands, venues, and fellow fans” on the Crowdpulse website. “When enough fans share videos of an event at the same time, Crowdpulse creates a synchronised video experience in which you can watch concerts from multiple angles,” explains its App Store listing. The challenge, as with Vyclone and Edge Music, is to get the kind of critical mass in downloads to ensure enough people at a given event are using the app.