<p>ustwo is a London-based, multi-platform digital user interface design studio that develops pioneering user experiences and apps for some of the world&#8217;s leading brands.</p> <p>They created <a href="" title="PositionApp">PositionApp</a>, Whale Trail, a mobile game that snagged an e-book deal, plus a raft of other interesting apps including most recently Rando (random photo-sharing) and Honk (visual messaging).</p>