Facebook app only for the messages?
Why doesn’t this exist? (if it does, why don’t I know about it)
The only time I every use Facebook is on my phone. I wasn’t selective enough with accepting friend requests at first and now my feed is filled with people I only vaguely care about. The people I want to know about don’t even really use it at all, further aggravating the problem.
The only functionality I use on the iPhone is the messaging. It is almost like I have e-mail, texts and facebook. Three different ways to send messages for three different (but sometimes overlapping) audiences. Everything else in the Facebook app is worthless to me and on top of that the alerts for when I have new messages are never timely.
What I need and want is an app that just handles fb messages, is that too much to ask?

See a need – fill a need. This is how you will make millions. Develop the app yourself or have someone in India do it for you.