There was a simple online application form with several short-answer questions covering motivations, competencies, and some commercial awareness. The online tests were easy enough. There was no phone interview component- applicants were sent straight to a two-part assessment center: Part #1 had 2 group exercises. Part #2 had interviews. Out of 25 applicants in my session, only 5 (not including me) made it to the second part, so I apologise for only being able to discuss the group activities. We were set into groups of 5. One exercise involved a mathematical puzzle, and the second involved discussing and presenting ideas for an app. They were assessing how we worked in a team throughout, rather than the actual outcome (obviously). I would have rated "positive review" if we weren't kept for over twice as long as advertised- close to 6 hours long due to huge amounts of waiting around. Additionally, they had an incredibly brutal policy of only giving lunch to the 5 successful applicants.