Its rubbish.
Instead open the mobile and add a link to your phones desktop. You can stay signed in and it looks and functions just like an app. Full Food diary, syns online etc etc. the added bonus is that because it's not really an app it takes up no room on your phone either. You even get a little icon for it. Why anyone uses that app I'll never know. It's just a glorified syn counter. That's the area where SW could really do with investing some membership fee profit!