Updates
The Simplybook system and app are overall very good but the app has a very serious flaw in that the calendar view cannot be trusted. Have to manually update to make sure it’s current by pressing red bar on top. Even bookings/blocks made on same device in the app can not be trusted to show up. Combined with potentially taking in manual bookings with time conflicts due to lack of updates and you have angry customers. At a minimum the app should automatically refresh when brought to the front, that event can easily be subscribed to by the app.