Bests & Worsts Reviews from Amazon

I hate it. Facebook should've never done this to us. It's ALWAYS ON. I don't know how to deactivate it. Everytime somebody sends me a facebook message it goes directly to messenger and all my wireless devices ding. How can I be running messenger on 3 different devices plus my laptop at the same time?? I use this app only because it's apparently the only way to get my facebook messages on a mobile device but I'm seriously considering removing it from all the devices and just making it not be an emergency because i'd really like to NOT have this thing bothering me all day and night. I at least know how to silence text messaging. EDIT to add: The thing that really bugs me about this is that it does not allow me access to my "other" inbox on facebook. I belong to a number of groups on facebook where I communicate with other members there but we are not facebook "friends". When we message one another about something better handled over private message than publicly in the group, it seems to be about a 50-50 chance whether it will go to my real inbox or my "other" inbox. Sometimes it takes days of me not seeing a message before the person says I need to check my "other" inbox and then I have to go log on to my pc if I want to read the message because this app doesn't have any way for me to check the other inbox.