I don't have numbers from Instruments, but anecdatally ;), both my wife and I experienced substantially shorter battery life when we had Messenger installed because it was always waking up in the background—even if we weren't using it.
Messenger may be a little more efficient when running, but it wants to run all the time, which is less efficient.
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I don't have numbers from Instruments, but anecdatally ;), both my wife and I experienced substantially shorter battery life when we had Messenger installed because it was always waking up in the background—even if we weren't using it.
Messenger may be a little more efficient when running, but it wants to run all the time, which is less efficient.
http://www.tuaw.com/2013/06/04/developer-suspects-facebook-a... http://www.reddit.com/r/iphone/comments/1xyap9/
That's about the FB app, not Messenger.
Also, I suspect if you use FB messaging much you would've had the same problem.