The mobile app is good but it does require a bit of tidying up, especially with the turning functions.
Currently page 1 is the ‘Cycle Computer’ page, which also has stop and u-turn, but the turn buttons should be moved onto this page, always there, greyed out when there’s no imminent junction, then light up brightly when there is. I believe the buttons not being there is the source of the vast majority of the ‘how do I turn’ questions.
Page 2. Group riding page or page of many buttons. Freed up from being the turning page. I would still suggest that the buttons on there should be made smaller and the turn buttons appear at the bottom.
Page 3. Group list, Would be nice if that updated faster but ok as it is.