It is generally good to keep your iPhone apps updated–as app updates usually contain new features or bug fixes.
Apps are updated all of the time, and depending on how many apps you have downloaded on your iPhone, every day there could be a lot of apps to be updated. When you turn on automatic updates for apps, new versions of apps that you currently have on your iPhone will automatically download when updates for those apps become available.
This post will explain how to turn on auto-updates for apps–just note the tip at the end of the post about how to avoid using data from your iPhone’s cellular data plan when updating apps.
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