Does ‘uni app’ usage spike in the evening?

Analysis from Flurry¬†suggests that mobile app usage is active all day, and spikes in ‘prime¬†time’ – i.e. between 7pm and 11pm. How does this affect students? Many universities have created or purchased a ‘uni app’ which provides portal-like information and links. It’s not clear to me whether these apps actually provide long-term benefit to students…