10-04-2016 13:45
10-04-2016 13:45
10-05-2016 06:05
10-05-2016 06:05
Welcome to the Forums @Karensaldana. It's weird to hear that your app is freezing. I recommend checking if your Android Fitbit app is updated by following the instructions provided in the How do I update my Android Fitbit app? post, also please check that your phone is a compatible mobile device.
Let me know the outcome.