iPhones running IOS9 sucking data with Wifi-Assist

This recent change can cause those with iPhones with IOS 9 to potentially be hit by huge data overages even when using WiFi and I felt it important enough to make you aware of it.

I was wondering why my cellular data usage recently skyrocketed on my iPhone, and this explains it, as the default setting is to have this “Wi-Fi assist” enabled, causing data to be split between WiFi and Cellular data by default, and on the iPhone 6 this setting is under Settings/Cellular at the bottom of the screen.  Newer Android phones have similar “Wi-Fi Assist” functionality, but on those devices is disabled by default, so be aware of the implications if you do decide to enable it.


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