wifi assist Vs. cellular data turned off for individual app

Discussion in 'iOS 9' started by jj5406, May 2, 2016.

  1. jj5406 macrumors newbie

    Sep 5, 2012
    I have this simple question about wifi assist that I can't seem to find the answer to.

    If I have cellular data explicitly turned off for a specific app (like Safari or Facebook) under the "use cellular data for" section, but I have wi-fi assist turned on, which will take precedence? In a weak-wifi situation, will my phone use cellular data to maintain a connection for those apps, or will it honor the explicit "no cellular data for this app" choice that I have made?

    The obvious answer is that it shouldn't ever use cell data for an app for which I have explicitly turned cell data off, but knowing Apple, wi-fi assist probably takes precedence. Please tell me which it is. Thanks.

    I like the idea of wi-fi assist, but not for those apps that I have explicitly prohibited from using cellular data.

  2. C DM macrumors Sandy Bridge

    Oct 17, 2011
    When WiFi Assist kicks in your phone switches to using cellular data--even the WiFi indicator disappears in the status bar at the top--which would mean that the typical cellular usage rules would apply.
  3. I7guy macrumors P6


    Nov 30, 2013
    Gotta be in it to win it
    If you have cellular data turned off from an app, it won't use cellular data. I tried your scenario with safari and I received a message that cellular data was turned off.
  4. cynics macrumors G4

    Jan 8, 2012
    Apps with cellular off takes priority.

    I keep a few streaming apps off so I don't accidentally use them at the gym on LTE.

    Very little data is used with wifi assist.


    5mb in 2 months. And I live between wifi and cellular.
  5. gsmornot macrumors 68030


    Sep 29, 2014
    I have unlimited data both at home and on mobile so I leave everything on. Since last October I have used 31MB due to WiFi assist.
  6. jj5406 thread starter macrumors newbie

    Sep 5, 2012

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