Gavin is the presenter for App Lab for O2 Guru TV, which is the YouTube channel for O2 featuring online shows about technology. In each themed episode, Gavin reviews a range of different Apps which you can download on to your smartphone.

As part of a 3-episode Christmas Special, Gavin gets shopping expert Fleur De Force to help review the best shopping apps for the festive season, along with a few of Fleur's top Christmas shopping tips.