This Hack Is For Facebook Messenger All Versions ( Hacks Says 6.1 But Its For All ) And Requires A Jailbroken iDevice..
Features::
-No VOIP ( Saves Battery Life )
-No Read Recipt
-Send Unlimited Photo's
-Send Videos For Unlimited Amount Of Time
-No DNS Cache And No SPDY
-Full Timestamps
-Removes "Invite Friends Banner"
-Black Keyboard
-Removes Location Button
-Never Online ( Says Active 1 Min Ago )
-No Typing Notification
Download:
How To Install::
1.Download File From Above Link!
2.Now Using iFile Tap On The Downloaded File And When The Popup Menu Appears Tap 'Installer' .
3.Wait For That To Install And Tap 'Done' In The Top Right Corner.
4.Done!! Make Sure To Respring After Installing!
Credtis::
Catalyst (thanks for let me share this )