Your iPhone has a “Low Power Mode”, which you’ll be prompted to activate it when your phone reaches 20% battery. However, you can enable it before that point to stretch your battery life further. Starting with iOS 11, you can also activate Low Power Mode right from the Control Center.
Wi-Fi calling allows your iPhone to place and receive phone calls and text messages over a Wi-Fi network. If you have a weak cellular signal but a solid Wi-Fi signal, your iPhone will automatically switch over and route calls and texts via Wi-Fi.
Apple’s iCloud Drive normally just works in the background on an iPhone or iPad. iOS 9 makes iCloud more accessible and useful, providing a new iCloud Drive app that lets you browse, view, and manage all the files stored in iCloud Drive.
Hard drives are getting larger and larger, but somehow they always seem to fill up. This is even more true if you’re using a solid-state drive (SSD), which offers much less hard drive space than traditional mechanical hard drives.
ISO files are disc images — complete images of a CD or DVD bundled in a single file. This file can then be “mounted” and made available as a virtual CD or DVD, allowing you to convert physical discs to virtual ones.