Anonymous3 years ago000Is the use of the app mandatory? In other words, does the device work even if you don't sync it with an app?Show in original language (German)kitten893 years ago000Yes, it works without the app. The app serves more as an automatic notebook of how long and when you last pumped.Show in original language (German)CommentAnonymous3 years ago000[This question should have been displayed for the "Freestyle Flex" pump, but I must have clicked the wrong way somewhere...Show in original language (German)Comment