Make your phone do some of the heavy lifting. Start by installing an app that lets you merge or delete redundant contacts. For iOS, use Cleanup Duplicate Contacts (69p). For Android, use Go ...

Got lots of duplicate photos on your Android phone? Here's how you can delete them quickly and easily.

Android phones differ in certain ways depending on their manufacturer, but most Android users are likely to be using Google Photos. You may not realize it, but Google Photos actually has duplicate ...